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Time Dimension To Become Space-like

KentuckyFC writes "The Universe is about to flip from having three dimensions of space and one of time to having four dimensions of space. That's the conclusion of a group of Spanish astrophysicists who have calculated that observers inside such a Universe would see it expanding and accelerating away from them just before the flip (abstract, full paper pdf on the physics arXiv). 'We show that regular changes of signature on brane-worlds in AdS bulks may account for some types of the recently fashionable sudden singularities. Therefore, the fact that the Universe seems to approach a future sudden singularity at an accelerated rate of expansion might simply be an indication that our braneworld is about to change from Lorentzian to Euclidean signature. Both the brane and the bulk remain fully regular everywhere.'" Update: 10/09 16:06 GMT by Z : A few readers have written in to point out that the article is not peer-reviewed; your mileage may vary.

587 comments

  1. Mayan Calender by andyh3930 · · Score: 5, Funny

    So that's whats going to happen when the Mayan calender rolls over in 2012.

    1. Re:Mayan Calender by dark404 · · Score: 5, Funny

      There will be a patch to update the calendar software to granite instead of sand stone, this will push the calendar into 4096.

    2. Re:Mayan Calender by xanadu113 · · Score: 2, Funny

      No, that's just the Mayan Y2.012K bug...

      --
      -Myke
    3. Re:Mayan Calender by mentaldingo · · Score: 2, Insightful

      Disclaimer: IANAP.

      Seriously, I think this is ridiculous for two main reasons, I think.

      How can the Universe suddenly change like that? Change requires time. It's a logical paradox. You say that in the future, that time will become a fourth spacial dimension, but try writing up a timeline of the events:

      1. Time 0: Universe has time and is normal.
      2. Time 1: Universe suddenly flips and now has 0 time, 4 space.
      3. Time ??: No time, but now where did the past go?

      OK, I'm no good at explaining this, but it clearly doesn't mix at all well with general/special relativity's block time. Not only for that timeline problem above, but also because the difference between space and time is made up by humans: Special relativity can be derived from the starting assumption that there are four dimensions (3 with real displacements, 1 with imaginary displacements) and a whole bunch of spaghetti (particles and stuff moving around). When you rotate the spaghetti through the fourth, imaginary dimension, you get a velocity, and it just so happens, that the rotation becomes hyperbolic, and you get the speed of light as a limit.

    4. Re:Mayan Calender by Fizzl · · Score: 1

      We geeks enjoy couple of months of delicious overtime with escalated salaries to fix the Y20.12k4D bug. ...Which never materializes because of our efforts, after which we are resented because of blowing the problem out of proportions.

    5. Re:Mayan Calender by requeth · · Score: 0, Troll

      a) who gives people science degrees b) who publishes this dribble (the enquirer I presume?) c) do they make money off of it? (I AM greedy...) Honestly, what's with the doomsday people getting publicity nowdays?

    6. Re:Mayan Calender by networkBoy · · Score: 1

      What if time is a big rubber band that breaks?
      "instant" state change.

      But as the article is not PR, I dunno.

      --
      whois gawk date unzip strip find touch finger mount join nice man top fsck grep eject more yes exit umount sleep dump
    7. Re:Mayan Calender by DeepZenPill · · Score: 2, Funny

      No no no, you have it all wrong. It goes like this:

      Time 0: Universe has time and is normal.
      Time 1: Universe suddenly flips and now has 0 time, 4 space.
      Time ??: ????
      Time 42: Profit!

    8. Re:Mayan Calender by trolltalk.com · · Score: 0, Redundant

      In Soviet MezoAmerica Mayan Calendar rolls over YOU!

    9. Re:Mayan Calender by Anonymous Coward · · Score: 0

      b) who publishes this dribble Please, it's "drivel".
    10. Re:Mayan Calender by graviplana · · Score: 1

      This got modded "Insightful"? What is wrong with you people? There can be VERY VERY SMALL metrics of Time. /sigh

      --
      "Time is nothing; timing is everything."
    11. Re:Mayan Calender by MarsDefenseMinister · · Score: 2, Interesting

      That particular problem can be solved by defining time as a big rubber band that *doesn't* break. Simple.

      --
      No weapon in the arsenals of the world is so formidable as the will and moral courage of free men.-Ronald Reagan
    12. Re:Mayan Calender by tm2b · · Score: 2, Insightful

      How can the Universe suddenly change like that? Change requires time. No... this change requires time before it, not after it. It's a phase transition.

      What was time like before the (4-space) big bang?

      That said, this is probably a junk paper, but what you identify isn't a problem.

      --
      "It is our blasphemy which has made us great, and will sustain us, and which the gods secretly admire in us." - Zelazny
    13. Re:Mayan Calender by ThePromenader · · Score: 1

      ...the key phrase in there is "logical paradox": who's logic? I find odd that we consider solid objects to have three dimensions - two suffice (width, depth), and I put even that into question. This is yet another brouhaha article stating "it is possible to describe what we see in ways that we are not used to" - informative value is next to zero as it describes absolutely zero change in scientific concept - only advances against our existing ignorance.

      --

      No, no sig. Really.

      ThePromenader
    14. Re:Mayan Calender by eclipz · · Score: 2, Interesting

      I am also not a professional. However...

      The paper describes the time dimension heading toward a singularity. So, we'll get the universe rapidly expanding outward faster and faster. However, there will be a point at which there is a "big freeze", where time will stop. However, there is no 'experience' of time stopping. Instead, we would experience time as normal as we are attached to it, and would have no clue that we can go no further. There is a very interesting description of this in "Einstein's Dreams".

      So, putting it into your explaination, all that spaghetti rotating in the forth dimension would keep doing so. Only an observer *outside* of time could ever see the change in the brane-space and only they would ever see the stuck versions of ourselves at the point of the signature change.

    15. Re:Mayan Calender by mhall119 · · Score: 2, Informative
      Look at it this way. We live in a 4 dimensional space, x, y, z and t are our 4 dimensions. x, y and z are space-like, while t is (currently) time-like. You steps go like this:

      1. t=0: Universe has time and is normal
      2. t=1: Universe suddenly flips, dimension t is now space-like
      3. t=2: You now life in a 4d universe with 4 space-like dimensions, and you are at point 2 on the 't' dimension, which you can freely travel on in the positive or negative directions (time travel becomes possible)


      Does that help?
      --
      http://www.mhall119.com
    16. Re:Mayan Calender by Xichekolas · · Score: 1

      I define time as a big soggy spaghetti monster... take that!

      --

      Self-referential Sigs are cool on /. these days...

      54

    17. Re:Mayan Calender by Anonymous Coward · · Score: 0

      Parent is a joke about Mayan Calendar Upgrades. Way to troll for karma.

    18. Re:Mayan Calender by Loucks · · Score: 1

      Then the universe needs to get a better office supply co.

    19. Re:Mayan Calender by mentaldingo · · Score: 1

      Actually, I'm quite surprised it was modded insightful. Especially since I was drunk when I wrote it.

    20. Re:Mayan Calender by xtracto · · Score: 1


            1. Time 0: Universe has time and is normal.
            2. Time 1: Universe suddenly flips and now has 0 time, 4 space.
            3. Time ??: No time, but now where did the past go?
            4. Profit!


      There, fixed it for you.

      --
      Ubuntu is an African word meaning 'I can't configure Debian'
    21. Re:Mayan Calender by KDR_11k · · Score: 1

      Why heading towards? how would we know that hasn't already happened?

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    22. Re:Mayan Calender by SiliconEntity · · Score: 1

      Change requires time.

      There would still be time after the change. However the metric would be different so that what used to be time would now be space-like. It still makes sense to imagine a block universe where there is a boundary, and on one side there is time as we know it, and on the other side there is a 4 dimensional Euclidean space.

      It's hard to imagine Euclidean space with no timelike dimension. You might think nothing would "happen" with no flow of time. But this may be an oversimplification.

      Ultimately, the reason things "happen" in our universe is not just because we have a timelike dimension; we also have an asymmetry in time that acts as an engine to make things change. In the beginning, when God created the heavens and the earth in the Big Bang, he created a low entropy state. Ever since then the universe has been "running downhill" as entropy increases. This is why we perceive change and a flow of time.

      From the block universe perspective, what we see is a universe with simple conditions at one end and complex ones in the middle, where we are. Differential equations, the laws of physics, govern how much change there can be from one time coordinate to the next. This ensures that the change is gradual and spreads out over the whole block.

      Once we go past the boundary in the block into the Euclidean universe, the question is, what differential equations will control things? Different equations will produce different results.

      One way to start is to think about particles. Understand that in the block universe, particles are not points, they are lines. And the simplest rule is that these lines follow geodesic curves, which are the curves of extremal length. This is what gives us gravitation. Well, if we go past the boundary, maybe that law will still hold. Particles will still be lines and will still follow geodesic curves. Those would be simple straight lines if the universe were flat, but it won't be, it will still be curved by matter in some way. This would lead to a different form of gravitation, perhaps repulsive rather than attractive (I haven't studied this part).

      The point is that even with a Euclidean space, there might still be a form of time. When we make the transition into the Euclidean state, our initial conditions will be far from smooth (if it happens "soon"). The laws of physics which govern matter in the Euclidean part of the block may be such that there would still be a gradient in conditions from near the boundary to far from it. Then this might allow a sense in which time could still be perceived as passing. Perhaps life forms attuned to previous conditions would not survive in the new universe, but new ones might evolve adapted to the new versions of physical laws.

      Even though the time dimension would not be physically different from the others, the initial conditions at the boundary would be different for this dimension than the others, so there still might be special physics related to that dimension, and in that sense a direction of time.

    23. Re:Mayan Calender by CableModemSniper · · Score: 1

      If at t=2 I walk back to t=0 am I now trapped there? (Until I get to t=1 again naturally I guess...)

      --
      Why not fork?
    24. Re:Mayan Calender by mhall119 · · Score: 1

      nope, once t goes space-like, you can travel back and forth as far as you want. Going back to t=0 just gets you at space-like t=0, it doesn't make t time-like again.

      --
      http://www.mhall119.com
    25. Re:Mayan Calender by sgt_doom · · Score: 1

      F*cking Mayans....they're always ahead of the curve#*$&$*#(#()$)@-

    26. Re:Mayan Calender by UncleTogie · · Score: 1

      Only an observer *outside* of time could ever see the change in the brane-space and only they would ever see the stuck versions of ourselves at the point of the signature change.

      IANAP, so pardon if these questions seem basic...

      Ok, in this theory, we're stuck. Nothing actually takes place after the "total stoppage" of time... H'wever, earlier you'd said that:

      Instead, we would experience time as normal as we are attached to it, and would have no clue that we can go no further.

      My questions being: Are our "experiences" post-time-halt actually real? Are they observable to anyone but ourselves {ourselves meaning within the EH}? Would everything actually remain the same in the universe post-stop? Is there a possibility of even a minute property change?

      Jus' curious...

      --
      Don't tell me to get a life. I'm a gamer; I have LOTS of lives!
    27. Re:Mayan Calender by fractoid · · Score: 2, Funny

      Soggy? His Noodly Appendage Shall Not be Overcooked!

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    28. Re:Mayan Calender by mstahl · · Score: 1

      How can the Universe suddenly change like that? Change requires time.

      For someone who's not a physicist, you've provided a nice neat explanation there. However, the only way that this change could occur is suddenly, absent a second, unbeknownst dimension of time through which the change would occur.

      It does bring up the obvious questions of whether the change would be survivable and then even whether it would be detectable. Would we even care? Would anything change?

    29. Re:Mayan Calender by knutkracker · · Score: 1

      1. Time 0: Universe has time and is normal.
      2. Time 1: Universe suddenly flips and now has 0 time, 4 space.
      3. Time ??: No time, but now where did the past go?
      4. Profit!!

      There. Fixed that for you.
    30. Re:Mayan Calender by sco08y · · Score: 1

      How can the Universe suddenly change like that? Change requires time.

      It was always like that, so nothing really changes. Change is a perception.

      You say that in the future, that time will become a fourth spacial dimension, but try writing up a timeline of the events:

      The idea of a timeline falsely assumes extrinsic time.

    31. Re:Mayan Calender by mcvos · · Score: 1

      Time ??: No time, but now where did the past go?

      I think it's somewhere in the distance. You should be able to walk there, if only you had time...

    32. Re:Mayan Calender by CableModemSniper · · Score: 1

      doesn't that imply a time-like dimension of meta-time? If time "was" time-like and is "now" space-like.

      --
      Why not fork?
    33. Re:Mayan Calender by mhall119 · · Score: 1

      Not necessarily. You can have functions that are a change in x over a corresponding change in y, even if both are space-like, so why would a space-like t dimension be any different.

      --
      http://www.mhall119.com
    34. Re:Mayan Calender by Anonymous Coward · · Score: 0

      If one tends to think the lining up of the Earth, the Sun at winter solstice, and the center of the Milky Way galaxy is to alter the geometry of all of spacetime, then sure.

    35. Re:Mayan Calender by orangesquid · · Score: 1

      Look at this timeline (I'm blending a lot of physical interpretations here):
      Time -2: Universe is (inversely) frozen in time, i.e. at a time singularity; the (imaginary) movie ends, though all the frames still exist "between" the singularities #-2 and #0
      Time -1: Universe is an (inversely) expanding 4-dimensional Lorentzian geometry, approaching maximum (imaginary) entropy (time is parabolic; this is one argument being currently studied)
      Time 0: Universe is a singularity with neither time nor space (where does the future go? where does the space go? where does the imaginary past go? where did the imaginary space go? into a singularity, of course, with no (imaginary) history and no dimension!); the movie begins / the imaginary movie ends (same thing)
      Time 1: Universe is an expanding 4-dimensional Lorentzian geometry, approaching maximum entropy
      Time 2: Universe is frozen in time, i.e. at a time singularity; the movie ends, though all the frames still exist "between" the singularities #0 and #2

      Note: an imaginary observer would see this chart flipped, and wouldn't know he was imaginary. From his perspective, we are imaginary.

      Perhaps a time-wise observer would approach the singularity (#2; an imaginary time-wise observer, #-2) at an ever-decreasing (or ever-increasing) rate? By ever-decreasing (or ever-increasing?), of course, time isn't stretching out time-wise (it can't do that), but stretching out space-wise: the universe's expansion approaches a maximum rate (would the distance between every point be expanding at the speed of light? that would render communication between any two points impossible, which might be at the point of time singularity?).

      If this time-singularity interpretation is applied to loop quantum gravity, you end up with an odd effect where the geometric complexity of the universe approaches a finite limit. Or, applied to time atoms, we just have a limited number of them.

      Disclaimer: I am (obviously) not a physicist.

      --
      --TheOrangeSquid Is it any wonder things seem so awry? We swim in a sea of confusion and don't have to think to survive
    36. Re:Mayan Calender by orangesquid · · Score: 1

      Err, by lack of history, I mean lack of *demonstrable* history.

      --
      --TheOrangeSquid Is it any wonder things seem so awry? We swim in a sea of confusion and don't have to think to survive
  2. So. . . . by Great+Beyond · · Score: 0, Redundant

    So that would be Time and Relitive Dimensions in Space? (oh, and first?)

    1. Re:So. . . . by jzuska · · Score: 0, Offtopic

      Nice

      Face of Boe = Cap'n Jack

    2. Re:So. . . . by Jeremiah+Cornelius · · Score: 5, Funny

      "Oh, that was easy," says Man, and for an encore goes on to prove that black is white and gets himself killed on the next zebra crossing.

      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
    3. Re:So. . . . by Kris_B_04 · · Score: 1

      Yeah.. gotta admit.. that one was a shocker.. ;)

      k

      --
      Remember when Windows were washed, mice were trapped and UNIX guarded the harem?
  3. Ode to the new way by fyngyrz · · Score: 5, Funny

    Oh, I'm living in a tesseract,
    a four dimensional box.
    It's bigger on the inside,
    what why my four-space rocks!
    When you get on the inside,
    the outside becomes the in,
    Dimensionally speaking,
    it's all about the spin.

    --
    I've fallen off your lawn, and I can't get up.
  4. E=MC^2 by jshriverWVU · · Score: 3, Funny

    If only Einstein was around to see it :)

    1. Re:E=MC^2 by TruePoindexter · · Score: 1, Insightful

      He'd smile and stick out his tongue.
      Nyah

    2. Re:E=MC^2 by empaler · · Score: 1

      There ya go. HTH :)

    3. Re:E=MC^2 by mikael · · Score: 4, Funny

      He's spinning in his grave - in a quantum mechanical way of course.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    4. Re:E=MC^2 by Genda · · Score: 1

      Hello...
      If time becomes a dimension... he will!!!!

    5. Re:E=MC^2 by watermodem · · Score: 1

      I gave it up years ago.

      A minion of the Great Satan....

    6. Re:E=MC^2 by StarfishOne · · Score: 1

      Noooo!!! Don't tell me you collapsed this wave function by looking into his grave!!

    7. Re:E=MC^2 by lelitsch · · Score: 1

      But can you tell if he's spinning without opening the casket?

    8. Re:E=MC^2 by bar-agent · · Score: 4, Funny

      He's spinning in his grave - in a quantum mechanical way of course.

      Would that be spin-up or spin-down?

      --
      i'd hit it so hard, if you pulled me out you'd be the king of britain [bash.org]
    9. Re:E=MC^2 by Anonymous Coward · · Score: 1, Insightful

      Both, obviously.

    10. Re:E=MC^2 by borroff · · Score: 1

      At least until we take a peak...

    11. Re:E=MC^2 by Domini+Canes · · Score: 1

      So, is Einstein a half-spin or integer spin? I am thinking about beowulf cluster ..... er Bose-Einstein condensate of Einsteins :)

    12. Re:E=MC^2 by workman161 · · Score: 0

      Both. At least until we open the grave and observe him.

    13. Re:E=MC^2 by LrdDimwit · · Score: 0

      Yes.

    14. Re:E=MC^2 by Mouthless+Wolf · · Score: 1

      DO A BARREL ROLL!

    15. Re:E=MC^2 by HTH+NE1 · · Score: 3, Funny

      Would that be spin-up or spin-down? Both, obviously. I find that strangely charming.
      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    16. Re:E=MC^2 by Maxo-Texas · · Score: 1

      Ha, you scraped the bottom for that.

      Can you top it?

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    17. Re:E=MC^2 by ObsessiveMathsFreak · · Score: 1

      Yes, but is he dead or alive, or in a quantum superposition of both?

      --
      May the Maths Be with you!
    18. Re:E=MC^2 by Gibbs-Duhem · · Score: 1

      Who knows? I'm looking at it sideways...

    19. Re:E=MC^2 by Anonymous Coward · · Score: 0

      How do you know he's dead? If you open the box you may be changing the results.

      Now where'd my cat go...

    20. Re:E=MC^2 by barkingcorndog · · Score: 1

      He's spinning in his grave - in a quantum mechanical way of course.

      Would that be spin-up or spin-down?
      We'll have to kill a cat to find out.
      --
      "I know together we'll make the possible totally impossible" - Homme
    21. Re:E=MC^2 by bob.appleyard · · Score: 1

      All very strange...

      --
      How dare you be so modest!! You conceited bastard!!
    22. Re:E=MC^2 by GreyPoopon · · Score: 1

      If only Einstein was around to see it :)

      Wait, if the time dimension morphs into a fourth space dimension, why can't he just travel here? He can at least catch the end of the movie. Oh wait, no, he's on the OTHER side. I suppose he can't get here from there.
      --

      GreyPoopon
      --
      Why is it I can write insightful comments but can't come up with a clever signature?

    23. Re:E=MC^2 by lahi · · Score: 1

      He's not a Higgs boson, then.

      -Lasse

    24. Re:E=MC^2 by jfengel · · Score: 1

      I don't know, but I know that Dirac is spinning the opposite way.

    25. Re:E=MC^2 by manifoldronin · · Score: 1

      He's spinning in his grave - in a quantum mechanical way of course.
      You sure? Want to take another look?
      --
      Tyranny isn't the worst enemy of a democracy. Cynicism is.
    26. Re:E=MC^2 by KDR_11k · · Score: 1

      With a slight flavour of peppermint...

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    27. Re:E=MC^2 by ValentineMSmith · · Score: 1

      Strange. But beautiful. My mother-in-law is a dog breeder. For the first litter her kennel ever bred (two dogs and two bitches), the dogs were named Charm, and Strange, while the bitches were Truth and Beauty.

      --
      Karma: Chameleon - mostly influenced by bad '80s New Wave music
    28. Re:E=MC^2 by vbraga · · Score: 1

      Both.=, if you don't look at it.

      --
      English is not my first language. Corrections and suggestions are welcome.
  5. My advice by Weaselmancer · · Score: 3, Funny

    Avoid poetry, coastal cities, and the Catskill mountains. Seriously.

    --
    Weaselmancer
    rediculous.
    1. Re:My advice by MightyYar · · Score: 1

      My advice is for all you contractors to update your time billing software.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
  6. in soviet time flipped russia... by veganboyjosh · · Score: 0

    this last post is still out of place...

  7. Whoa... by cloudwilliam · · Score: 1

    So what does this mean for the atoms-of-my-fingernails-being-a-tiny-universe theory?

  8. Another dimension? by athdemo · · Score: 1

    Does this mean I'm gonna get fatter?

    1. Re:Another dimension? by weirdcrashingnoises · · Score: 2, Funny

      No, but your slashdot ID# should cease to matter.

      and there was much rejoicing.

      (holy crap we have close #'s too)

      --
      sigs... don't talk to me about sigs....
  9. I wasn't expecting that... by Anonymous Coward · · Score: 4, Funny

    Nobody Expects the Spanish Astrophysicists! In fact, our two main weapons are theory and telescopes, theory and telescopes, and an insane amount of genius, wait that's three, our three main weapons are...

    1. Re:I wasn't expecting that... by the_Twisted · · Score: 0

      Mod parent up for the hillarious Monty Python reference! Cheers! http://en.wikipedia.org/wiki/The_Spanish_Inquisition_(Monty_Python)

    2. Re:I wasn't expecting that... by graviplana · · Score: 1

      Heh, good one. One of the best in the thread, imo.

      --
      "Time is nothing; timing is everything."
  10. But what does that mean? by downix · · Score: 2, Interesting

    If time becomes space-like, what would that mean for us? Would we be able to transverse time as easily as space? Would time itself become irrelevent as we could look "forwards"? Will the cubs win the world series? These important questions have to be answered!

    --
    Karma Whoring for Fun and Profit.
    1. Re:But what does that mean? by Kyont · · Score: 1

      > Would we be able to transverse time as easily as space?
      Yes!

      > Would time itself become irrelevent as we could look "forwards"?
      Yes!

      > Will the cubs win the world series?
      Sadly, the answer is still... No!

      --
      You shall see a cow on the roof of a cotton house.
    2. Re:But what does that mean? by caramelcarrot · · Score: 2, Insightful

      Physics as we experience it will go to shit, since much of the base derivations are a consequence of a non-spacelike time.

    3. Re:But what does that mean? by AragornSonOfArathorn · · Score: 1

      If time becomes space-like, what would that mean for us? The "flux capacitor" prop they built for Back to the Future will start to work. Would we be able to transverse time as easily as space? Yes. Would time itself become irrelevent as we could look "forwards"? Yes. Will the cubs win the world series? No. These important questions have to be answered!

      Done.

      --
      sudo eat my shorts
    4. Re:But what does that mean? by Rob+T+Firefly · · Score: 1

      Will the cubs win the world series? Yes, against Miami in 2015.
    5. Re:But what does that mean? by brunes69 · · Score: 1

      I am pretty sure you'd be dead and would not have to worry about it

    6. Re:But what does that mean? by jimstapleton · · Score: 1

      Actually, in a lot of quantum stuff, time is space like already.

      Namely - if you see an action in forward and reverse, both make sense. As opposed to macroscopic, where if you show a picture of a man falling from a roof in reverse, most people can tell you its in reverse.

      --
      34486853790
      Connection too slow for X forwarding? Try "ssh -CX user@host"
    7. Re:But what does that mean? by inviolet · · Score: 4, Interesting

      > Would we be able to transverse time as easily as space?
      Yes!

      > Would time itself become irrelevent as we could look "forwards"?
      Yes!

      In "Slaughterhouse Five", Vonnegut wrote about creatures who perceived time as a geometric dimension. They could perceive their entire lives as a wide landscape, stretching from past to present to future... and they could move freely within it, to relive the better moments and fast-forward over the unpleasant ones.

      One of the implications that these creatures could see, but which we could not, is that the universe can only play out one way. Whatever happens, has always happened, and always will happen, it is unavoidable. The creatures could see their future with absolute certainty, and so they knew that choice is an illusion (or, in my understanding, a mis-connotated word that belongs in the realm of epistemology rather than of metaphysics).

      In any case, if the universe experiences this sort of "signature change", then we'll never know it. Consciousness will abruptly cease, like a paused DVD player or a saved Diablo game, waiting forever for time to resume. But, a new sort of consciousness could arise, to which physical movement is the equivalent of temporal progression. Somehow, if it could gather information and then ruminate upon it, by means of movement rather than time, it could become self-aware.

      --
      FATMOUSE + YOU = FATMOUSE
    8. Re:But what does that mean? by Goaway · · Score: 1

      That's not what "spacelike" means. Quantum mechanics takes place in Lorenzian space, with one timelike and three spacelike dimensions.

    9. Re:But what does that mean? by moderatorrater · · Score: 1

      This is really an unproven concept. It's string theory, so no need to worry until they, first, provide a provable hypothesis and, second, prove it. Not to say that i'm again string theory, far from it, I'm just saying that this is a big unprovable nothing right now.

    10. Re:But what does that mean? by planckscale · · Score: 2, Funny
      Well lets hope that when I abruptly stop that I am frozen in front of my laptop reading Slashdot. That way I can ruminate on the comment "I really hope I'm not in the DMV when time ends." for eons.

      --
      Namaste
    11. Re:But what does that mean? by Anonymous Coward · · Score: 0

      Is that you, Joel? Still ruminating on the cubes, huh? Yeah, me to; not really, LOL!

    12. Re:But what does that mean? by zippthorne · · Score: 1

      But.. he was wrong. QM is the refutation: all the "hidden-variable" variations have been eliminated leaving only the truly random. We don't live in a clockwork universe.*

      *although it's certainly possible that brains are constructed such that QM variations averaged out to very little relevance.

      --
      Can you be Even More Awesome?!
    13. Re:But what does that mean? by darkshadow · · Score: 1

      No, because space will become time-like

      --
      -Darkshadow (There was a thing called Heaven; but all the same they used to drink enormous quantities of alcohol.)
    14. Re:But what does that mean? by pla · · Score: 1

      If time becomes space-like, what would that mean for us?

      The "problem", philosophically, with a purely Newtonian universe, derives from the niggling little detail that free will cannot exist. Every possible action you could ever take will have already happened, just not yet.

      As one way to interpret time as reducing to the status of a mere spatial dimension, consider the classic phrase, "God does not play dice with the universe". Quantum theory basically breathed new life into the universe, by allowing for "true" random numbers at the lowest levels of reality. If that suddently stops, and all phenomena revert to deterministic behavior, we go back to a purely Newtonian universe (or at least, a Newtonianly "simulated" relativistic universe), where you have absolutely no influence over what will happen in the future. Ever decision you make, every action you take, exists as the only physically-allowed path from that point in spacetime.

      To us, however, nothing will change. The universe will just start using /dev/urandom with an empty enropy pool. For all we know, this could already have happened.



      Would time itself become irrelevent as we could look "forwards"?

      "Look" with what sensory organs? Imagine watching a home movie of yourself... In hindsight, you already know what happens. But that knowledge doesn't make the you-in-the-movie any more able to change or even perceive the same future-to-it sequence events. The you-in-the-movie has to watch events unfold as they occurred, as if for the first time. More than that, though... Even if the you-in-the-movie could know its future, by somehow having consciousness and sensing its celluloidy future, it couldn't do anything about that. The movie itself would limit what it can do to what it always did/does/will do, no different than a brick wall limits our ability to move between two points in space.

      Of course, the implications for morality under such considions seem rather disturbing... No matter what we do, we will do what we would always will have done.

    15. Re:But what does that mean? by Anonymous Coward · · Score: 0

      This doesn't make sense to me. How could these beings "choose" which points in spacelike-time to visit if their timeline is predetermined? Seems like a meta-step. Is their progression through spacelike-time also logged on a meta-spacelike-timeline? They might just think they are choosing to revisit and fast-forward through points of spacelike-time, while their meanderings are also predetermined. Their consciousness would simply be along for the ride.

    16. Re:But what does that mean? by mpathetiq · · Score: 1

      But, a new sort of consciousness could arise, to which physical movement is the equivalent of temporal progression.

      This is exactly how I already understand time. Our three dimensions only exist as an impossibly thin membrane in the spatial dimension(s) of time and the feeling of temporal progression results from this movement. In certain states of meditation, I can feel (or imagine that I feel) my existence in these higher dimensions as a sliding, swirling or fuzziness in which I am not only experiencing the moment in which I live, but also the near-future and near-past all at the same moment (sometimes more near than others.) However, in these states, time is not a single dimension as these researchers claim, but is actually three dimensions. This allows from freedom of choice because you can move all over the realm of time.

      Don't worry, I think it sounds crazy too.

    17. Re:But what does that mean? by ZombieWomble · · Score: 1

      Nitpick: Not all of the hidden variable models have been eliminated. Experiments like those investigating Bell's inequality only rule out local hidden variable theories - that is, ones where any two given particles cannot interact faster than the speed of light (i.e. through photon exchange). While theories which throw away locality aren't particularly intuitive and aren't adhered to by many, they can be constructed such that they don't interfere with other principles such as the restriction on the speed of transfer of information and so forth. Indeed, if you really don't care about elegance, you can create a sufficiently complex set of hidden variables to explain any experimental observation.

    18. Re:But what does that mean? by Anonymous Coward · · Score: 0

      I thought it was the Tokyo Cubs vs the Rome Gladiators.

    19. Re:But what does that mean? by Orange+Crush · · Score: 1

      Strictly speaking, there's no such thing as a "provable" hypothesis. They're either "disproven" or "not disproven."

    20. Re:But what does that mean? by king-manic · · Score: 2, Insightful

      The "problem", philosophically, with a purely Newtonian universe, derives from the niggling little detail that free will cannot exist. Every possible action you could ever take will have already happened, just not yet.

      Free will is just an idea. It isn't some essential observed bit of the universe. From all scientific evidence we are complicated finite state machines. We are entirely physical, deterministic machines.

      --
      "There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy."
    21. Re:But what does that mean? by kalirion · · Score: 2, Interesting

      This allows from freedom of choice because you can move all over the realm of time.

      But you'd have no control over where in the realm of time you choose to move any more than you have control where in space you choose to move. You can will what to do, but you can't will what to will.

    22. Re:But what does that mean? by Anonymous Coward · · Score: 0

      but on the other hand, that sentiment (destiny is the common word i believe) is and always has been the biggest lie we tell ourselves so we can accept our own failures. Choice is not the illusion, the belief that there is no choice however, is.

    23. Re:But what does that mean? by jeffasselin · · Score: 3, Interesting

      The existence of 3 dimensions of time is one of the suggestions of quantum gravity.

      Also, why does time seem to flow into a single direction? Most of the equations of physics work fine both ways, but time only appears to flow in a single direction, only its "pace" changes. The best explanation is that there's a breaking of symmetry, a process which for some reason only occurs in one direction of the time dimension(s). The only such process we can observe at this time is entropy. In a closed system, it always increases, it can never decrease. So entropy seems to be linked to time in some intricate way, or maybe it's actually an extra time dimension linked to the first in some way. So what happens if time changes into a space dimension? What does that even MEAN? The only significant difference between time and space is that single direction in which time flows, so does it mean the second law of thermodynamics will stop applying? The flow of entropy will reverse or break its link to the time dimension? This would not necessarily be so "bad" but it would completely break down most of the laws of physics that depend on this phenomenon, thus destroying the universe, no?

      --
      If he explores all forms and substances Straight homeward to their symbol-essences; He shall not die.
    24. Re:But what does that mean? by iter8 · · Score: 1

      Remember, time is just god's way of keeping everything from happening at once. And space is god's way of keeping everything from happening to you. So now, everything will happen at once, just not to you.

    25. Re:But what does that mean? by Anonymous Coward · · Score: 0

      they could move freely within it

      That makes no sense. "Move" implies time. Break it down a dimension and you'll see what I mean: Assume there is a species which perceives one of our spacial dimensions as time. To us, they would simply be in that space, while they would perceive the differences in the slices which are spanned by their two spacial dimensions as movement. In that situation, you (as a three space-dimensional being) wouldn't "relive" one of your slices, would you?

    26. Re:But what does that mean? by Ashtead · · Score: 2, Interesting

      "Look" at all? Won't electromagnetism fail at this point too when the photons stop dead, so there won't be anyone left to look for or at anything? Not that there would be any way to see anything either. After all, it is electromagnetism that really holds atoms, molecules, and thus people, planets, and stars together ...

      Will it look like the langoliers finishing off the reality starting at one edge, or will it be like the encounter with the Boojum "softly and suddenly vanish away"?

      Or maybe it just will be a party lasting indefinitely at a restaurant at the end of the universe.

      --
      SIGBUS @ NO-07.308
    27. Re:But what does that mean? by moderatorrater · · Score: 1

      Sorry, I should have said "testable", my bad.

    28. Re:But what does that mean? by Anonymous Coward · · Score: 0

      But, a new sort of consciousness could arise, to which physical movement is the equivalent of temporal progression. Somehow, if it could gather information and then ruminate upon it, by means of movement rather than time, it could become self-aware.


      No, how? There's no time, so there can be no action; no verbs. Arise, gather, ruminate, become - all impossible. There is only THIS, and the only verb TO BE.
    29. Re:But what does that mean? by kalirion · · Score: 2, Interesting

      In "Slaughterhouse Five", Vonnegut wrote about creatures who perceived time as a geometric dimension. They could perceive their entire lives as a wide landscape, stretching from past to present to future... and they could move freely within it, to relive the better moments and fast-forward over the unpleasant ones.

      Movement is change, and change requires time. To move from one time to another, you need some kind of "metatime". To move through that, you'd need "metametatime" and so forth. Without change, you can't decide to "relive" the better moments because you've already lived them, are currently living them, and will always live them. You'd either exist everytime through your life "simultaneously" or just in the same moment. With metatime your existence would still be linear, no matter how many jumps and zigzags you make through ordinary time. Say you time travel 1985 -> 1955 -> 1985 -> 2015 -> 1985 -> 1955 -> 1885. That would be your linear metatime progression, and that's the one your memories will follow.

      Anyway, that's the only way it would make sense to me :)

    30. Re:But what does that mean? by botik32 · · Score: 1

      This allows from freedom of choice because you can move all over the realm of time.

      But you'd have no control over where in the realm of time you choose to move any more than you have control where in space you choose to move.


      But how is this different from now?
      Every moment we are aware of the 'past' but we are in the present. We cannot surely say that we've been just this second ago here because that second has passed. We cannot prove our continuous movement through time.

      Imagine that you were randomly bouncing through the timeline of your being. At each point you would be having the memories prior to that moment in time, and you would be sure that you were in fact moving in a straight line, since you remember the 'past' but have no idea of the 'future'.

      You would not be aware of the fact that you are bouncing through time, even if you were actually jumping up/down the timeline. One moment you are 3 year old, next you are 50, with memories of a 50yr old...

    31. Re:But what does that mean? by fredrated · · Score: 1

      "why does time seem to flow into a single direction?"

      Doesn't quantum mechanics say that there are random events in the universe, like when will a radioactive nucleus emit a particle? In that case (IMHO), the flow of time is required for the realization, or resolution, of random events. You can't have random events without a 'before' the event and an 'after' the event, the flow of time is from the before to the after.

      I understand that the canonical form of Relativity has no variable t. Some say this means that all of time coexists. However, the flow of time is required to resolve all random events, after which all of time can coexist as one big block. Thank God we only experience consciousness in the flow of time, so even if all of time exists at the end of time, at least we will not be left forever experiencing our existence.

    32. Re:But what does that mean? by CoffeeJedi · · Score: 1

      Great Scott!

      --
      May you be touched by His Noodly Appendage. RAmen.
    33. Re:But what does that mean? by botik32 · · Score: 1

      In a closed system, it always increases, it can never decrease.

      If this is true, how did the stars and planets form, from a uniform high entropy primordial soup into something as ordered as stars and planet systems? Or would it be that a gas cloud is more ordered than a planet?

    34. Re:But what does that mean? by ayvee · · Score: 1

      Movement? Isn't movement the change of position with time?

    35. Re:But what does that mean? by samkass · · Score: 1

      From all scientific evidence we are complicated finite state machines.

      Really. Could you please link to this evidence? It was my impression that it's an open question whether or not quantum uncertainty is involved in sentience or not.

      Einstein said that "God doesn't play dice with the universe." There are quite a few schools of thought these days that say that that's ALL God does with the universe.

      --
      E pluribus unum
    36. Re:But what does that mean? by RealAlaskan · · Score: 1
      If time becomes space-like, what would that mean for us?

      Well, since time is what keeps everything from happening at once, everything would happen at once, but in different places.

      Would we be able to transverse time as easily as space?

      Yes, but I'm guessing you will only be able to go in one direction, and there will be a maximum (and minimum) velocity of one second per second (notice how the units cancel, neatly getting around the absence of time in our post-flip universe).

      Will the cubs win the world series?

      That would take a lot of time ... which we would be fresh out of.

      Finally, always remember that while time flies like an arrow, fruit flies like a banana.

    37. Re:But what does that mean? by brunascle · · Score: 1

      the photons wouldnt stop. they're not moving in the time dimension, only in the space dimensions. from the frame of reference of the photon, there is no time.

    38. Re:But what does that mean? by PHPNerd · · Score: 1

      The funny thing is that whether or not it's proven, it's still something to worry about. Just because we haven't wrapped our small brains around it enough to definitively prove it doesn't mean that it couldn't come true, or that it won't. That is, at least, until it's disproved altogether. :P

    39. Re:But what does that mean? by DimGeo · · Score: 1

      The problem with the term "movement" is that it implies "velocity". When there's no such thing as time (but instead only 4 "equal" dimensions) there's no basis for forming a term like "velocity". Except if you mean taking one of the 4 axes as "time" and "move" against the other 3. That could be fun.

    40. Re:But what does that mean? by E++99 · · Score: 1

      Free will is just an idea. It isn't some essential observed bit of the universe.

      No, it's a directly observable quality of consciousness.

      From all scientific evidence we are complicated finite state machines. We are entirely physical, deterministic machines.

      That is absurd. "All scientific evidence"? Try "no shred of evidence anywhere."

      Furthermore, it's a theory which offers no credible explanation for the observed phenomenon of consciousness. Further still, it is a theory which is incompatible with the consciousness's observed property of free will.
    41. Re:But what does that mean? by kalirion · · Score: 2, Interesting

      You're absolutely right. There is an underlying assumption that right now we are moving linearly through time. However you have to consider that if we were bouncing around, it wouldn't make any difference to us. I mean, what's doing the bouncing? At each point, as you've said, we have our memories of the past and not the future. As far as I'm concerned, that is me, the memories, the remembered experiences, whatever the current state is. Past bounces and future bounces would have zero affect on the present. It's always the current bounce that would matter and nothing else.

      To take it further, The memories present in each bounce could be completely unrelated to any events at any time. There might be no cause and effect at all, rendering "past" and "future" meaningless terms.

      Hell, instead of bouncing around, we could be stuck within the same moment and not know the difference. That's what might happen when time is gone, and it "already" might be. Might "always" have been in fact.

    42. Re:But what does that mean? by Anonymous Coward · · Score: 1, Interesting

      We are entirely physical,

      Correct.

      deterministic

      Incorrect. The particles comprising our bodies can only be determined within a probability distribution, with the Heisenberg uncertainty principle providing the lower limit to observation.

      machines.

    43. Re:But what does that mean? by RoverDaddy · · Score: 1

      In the largest sense, yes, the primordial soup was more ordered. Locally, entropy in one place can decrease, but at the cost of increasing the sum total entropy of the Universe. I can take scraps of wood and build a table, and it may seem to a human observer that 'order' has increased, but the laws of physics guarantee that overall order in the basest sense has decreased. I expended energy to make that table, which produced waste heat, and hence (? - not sure of my thermodynamics here) more disorder.

      --
      RETURN without GOSUB in line 1050
    44. Re:But what does that mean? by Have+Brain+Will+Rent · · Score: 1

      and they could move freely within it, to relive the better moments and fast-forward over the unpleasant ones.

      So they could choose which moments to linger over...

      and so they knew that choice is an illusion

      So then they couldn't choose to fast forward over unpleasant experiences and linger over better moments.

      Vonnegut should have had a wrestling match, in a big pit of mud jello, with Philip K. Dick.

      I think the problem with talking about these sorts of things, and probably also talking about conciousness as well, is that it runs smack into Goedel's Incompleteness Theorems http://en.wikipedia.org/wiki/G%C3%B6del's_incompleteness_theorems.

      --
      The tyrant will always find a pretext for his tyranny - Aesop
    45. Re:But what does that mean? by AdamThor · · Score: 1

      If time becomes space-like, what would that mean for us?

      The rapture?

      --
      -- "Oh. This guy again."
    46. Re:But what does that mean? by Ardipithecus · · Score: 1
      This is of course the "block universe"

      There's a write up and interesting links at http://en.wikipedia.org/wiki/Block_universe This one from SciAm is worth a couple of minutes or cm http://urgrue.org/lib/mysterious-flow.html

    47. Re:But what does that mean? by kalidasa · · Score: 1

      WHY should we worry about it? Since the chemical processes that our thoughts depend upon are themselves dependent upon a unidirectional dimension of time, if it happens, NONE of us will be around to face the consequences.

    48. Re:But what does that mean? by ultranova · · Score: 3, Interesting

      The only such process we can observe at this time is entropy. In a closed system, it always increases, it can never decrease.

      In a closed system entropy can and does decrease from time to time. It is simply much more likely to increase, due to there being more possible states with high entropy than there are states with low entropy in known physical systems, and the likelihood of it decreasing in a given period decreases sharply as the complexity of the system grows. It never goes to zero, thought.

      A classical example is a box with two separate gasses, initially separated by a dividing wall. If the wall is removed, the gasses will mix, eventually spreading equally to every part of the box. However, suppose that the box only contains a single molecule of both gasses. It is certainly possible, and even likely, that both molecules happen to be at their initial side of the box, and both gassed therefore separated back to their own sides, at some future point. Add another molecule to both gassed, and you'll have to wait a bit longer for all four to be at their initial sides, but still not too long. A third molecule, and it takes longer still, then fourth, fifth and so on.

      The more molecules you add, the longer you'll have to wait. However, no matter how many molecules there are in the box, given a long enough time, the gasses will separate, simply due to random motion of the molecules happenign to take all the molecules of one gas to one side of the box at the same time, and all the molecules of the other gas to the other side at the same time.

      It will take almost, but not quite, forever, but that's a far cry from "never".

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    49. Re:But what does that mean? by Bryan+K.+Feir · · Score: 1

      Look up James Alan Gardner's short story ‘Muffin Explains Teleology to the World at Large’. It's actually not far from that thought...

    50. Re:But what does that mean? by Samah · · Score: 1

      > Consciousness will abruptly cease, like a paused DVD player or a saved Diablo game, waiting forever for time to resume.
      Ah but you can backup your Diablo savegames and dupe items. Remember carrying around 20 SoJ?
      Perhaps we can all keep savepoints in our lives incase we need to undo something stupid (like getting married).

      --
      Homonyms are fun!
      You're driving your car, but they're riding their bikes there.
    51. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      They could perceive their entire lives as a wide landscape, stretching from past to present to future... and they could move freely within it, to relive the better moments and fast-forward over the unpleasant ones. Movement is change, and change requires time. To move from one time to another, you need some kind of "metatime". [...] You'd either exist everytime through your life "simultaneously" or just in the same moment. That's kind of what they are talking about, no? That there are neither concepts of time, nor of meta-time. You just "exist" simultaneously (notice that this is not anymore just a good old existence in some other time). The original post is explicit about this:

      The creatures could see their future with absolute certainty, and so they knew that choice is an illusion (or, in my understanding, a mis-connotated word that belongs in the realm of epistemology rather than of metaphysics). So then, when you write:

      With metatime your existence would still be linear, no matter how many jumps and zigzags you make through ordinary time. Indeed, but there would be no necessity to choose any particular sequence of jumps. For example:

      Say you time travel 1985 -> 1955 -> 1985 -> 2015 -> 1985 -> 1955 -> 1885. That would be your linear metatime progression, and that's the one your memories will follow. [my emphasize] So it is to some extent an arbitrary choice, the choice that one would make based on the memory of the whole.
    52. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      Movement? Isn't movement the change of position with time? I am moving my head disapprovingly.
    53. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      The "problem", philosophically, with a purely Newtonian universe, derives from the niggling little detail that free will cannot exist. Every possible action you could ever take will have already happened, just not yet. Wow, next thing you'll tell me is that purely Newtonian universe has something to do with the universe as we know it...
    54. Re:But what does that mean? by OmpKoi · · Score: 1

      "could become" doesnt really apply here, if there is no time, there is no thought.. thought is a constructive progress.. the whole notion of a "time dimension" is sorely skewed here. there is no "time", just causality between elements. if causality stops so would any form of consciousness.

    55. Re:But what does that mean? by kalirion · · Score: 1

      That's kind of what they are talking about, no? That there are neither concepts of time, nor of meta-time. You just "exist" simultaneously (notice that this is not anymore just a good old existence in some other time).

      If there was no metatime, then they couldn't jump around time at all. The whole "I was just at that moment, but now I'm at this moment" business is strictly metatime. And if there was no ordinary time, there'd be no other moments to jump to. If our time was just another space-like dimension to them, then our metatime would be their time.

      So it is to some extent an arbitrary choice, the choice that one would make based on the memory of the whole.

      Sure, and that "choice" would still be predetermined. If they could see the "metafuture" they'd know where they would end up jumping "next" and would have no more control over it than they would over what they might do at any given ordinary time-moment.

    56. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      If there was no metatime, then they couldn't jump around time at all. The whole "I was just at that moment, but now I'm at this moment" business is strictly metatime. And if there was no ordinary time, there'd be no other moments to jump to. If our time was just another space-like dimension to them, then our metatime would be their time. We can call it metatime if you wish. One difference between such metatime and time comes next:

      If they could see the "metafuture" they'd know where they would end up jumping "next" and would have no more control over it than they would over what they might do at any given ordinary time-moment. Ok, that would have been one possibility. But also, having memory of this metafuture, they could have chosen not to go there but somewhere else instead.
    57. Re:But what does that mean? by kalirion · · Score: 1

      Ok, that would have been one possibility. But also, having memory of this metafuture, they could have chosen not to go there but somewhere else instead.

      That would be changing metahistory just as chosing to perform an action in a timeperiod that's different from the action they remember would be changing history. Maybe not cross the road so they wouldn't get run over by a car? If time is unchangeable, then it would make sense for metatime to be just as immutable. Or you'll have metametatime to deal with. ("Well, before I chose to jump to this future, but now instead I jumped to this future so the previous jump never happened in the metapast. But guess what, it did happen in the metametapast".) :)

    58. Re:But what does that mean? by jeffasselin · · Score: 1

      I will refer you to

      http://en.wikipedia.org/wiki/Second_law_thermodynamics#Microscopic_systems

      The phenomenon you explain here isn't a violation of the law, as the law doesn't apply at such scales.

      What I was referring to was mostly large-scale phenomenon, astronomical bodies and physical systems that depend on this law. Stellar combustion, planetary ecospheres, etc. Without the second law of thermodynamics, wouldn't it be possible to have a perpetual motion machine? To produce energy without producing heat? What would happen to heat transfer mechanisms that are necessary for biological systems to work?

      Looking at the consequences on a quantum level is probably useless, as quantum mechanics doesn't account for general relativity which is pretty basic to the nature of space and time. Trying to understand this in terms of string theory is even more futile in my opinion.

      Of course, understanding why the second law os so basic and how it is related to the direction of the temporal dimension would probably help. And to conclude, I'm thinking that the "study" referred to in the article is BS. But speculation is still interesting :-)

      --
      If he explores all forms and substances Straight homeward to their symbol-essences; He shall not die.
    59. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      That would be changing metahistory just as chosing to perform an action in a timeperiod that's different from the action they remember would be changing history. Maybe not cross the road so they wouldn't get run over by a car? If time is unchangeable, then it would make sense for metatime to be just as immutable. Or you'll have metametatime to deal with. ("Well, before I chose to jump to this future, but now instead I jumped to this future so the previous jump never happened in the metapast. But guess what, it did happen in the metametapast".) :) You insisted on using the word meta-time, not me, so now we are back where we were at the beginning, or, I could say we have been here now, in the metapast, where we were once before, in the metafuture.

      To be a bit more precise: I don't see any difference between your use of time and metatime, past and metapast, history and metahistory--prefixing with meta in all the examples is yet another synonym for time, thus of course one ends up, instead with some (imutable or not) time with metatime (which plays the same role of time in addition to (immutable or not) time).

      I thought it would be more like it was mentioned before: one's history is like lined up along a line. But there is no time: one is not traversing one's life along the line, but rather somewhat erratically, based on the memory of one's life. Such line would have to overlap with other lines, that's clear enough, but the traversal would have had no trajectory: you're always here and there, you could only fix your position in life relative to other people's lives, that's about it.

      Or relative to cars, or animals, or whatever else you wish--if one remembers being hit by a car, well then, that's quite an event, it might have been traumatic, or pleasurable, or painful, or forgotten... If one could remember one's death (or birth for that matter) well, those are the edges, no?
    60. Re:But what does that mean? by kalirion · · Score: 1

      I thought it would be more like it was mentioned before: one's history is like lined up along a line. But there is no time: one is not traversing one's life along the line, but rather somewhat erratically, based on the memory of one's life. Such line would have to overlap with other lines, that's clear enough, but the traversal would have had no trajectory: you're always here and there, you could only fix your position in life relative to other people's lives, that's about it.

      Wait, if the traversal has no trajectory, then how can you call it a traversal? If you are omnipresent along a timeline, then you can't traverse it - as you said, you're just there. You're stuck experiencing all moments "simultaneously". If you only want to experience one moment at a time, that's where meta-time comes in - at any given meta-moment you'd be experiencing an ordinary moment, and jumps between non-sequential moments would take place within sequential meta-moments.

      Imagine a standard space vs. time graph with space as the y-axis and time as the x-axis. Without teleportation, there'd be a line pointing to where in space you are at any given time. With teleportation, the line is disjointed. Same thing with time vs. meta-time. Time on the y-axis, meta-time on the x-axis. At any given point in meta-time, you are at a certain point in time. Maybe the slope would increase with your speed through space (relativity). When you actually time jump to a disconnected period, the line becomes disjointed.

      But if everything is simultaneous, there is no traversal and no meta-time, no "fixing of position" since the position would be fixed remain fixed to the entire timeline.

    61. Re:But what does that mean? by jeffasselin · · Score: 1

      In one direction, it looks like an electron went down an energy state, and the extra energy is released as a photon. In the reverse direction, it looks like a photon was absorbed by the electron, thus pushing it to a higher energy state. Both make sense in the context of quantum mechanics and are valid phenomenon. Most theories dealing with time, including relativity, will include t as a variable, but it's usually squared, so its sign doesn't matter, or deal with it as a vector. Certain events mediated by the weak theory are not reversible, but the weak force also breaks parity. It is unclear how this is related to entropy though, and I don't feel too qualified to take this discussion too deeply.

      Quantum mechanics doesn't say events are "random", but that they are "unpredictable". Not quite the same thing. From what I can see, we live in a deterministic, non-predictable universe i.e. every effect that occurs can be shown to proceed from a cause according to precise laws of physics. We cannot always predict the effects from the initial conditions, but that doesn't make it random. The only reason you think that "the window was broken because I threw the ball into it" makes more sense than "the ball was thrown into my hand by the window being mended" is because the second example lessens entropy.

      And finally, I don't thank God or any extraneous supernatural entity for the parameters of my existence. Time and space being necessary parameters/limitations for perception to occur then it is necessary for us to perceive them is it not?

      --
      If he explores all forms and substances Straight homeward to their symbol-essences; He shall not die.
    62. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      I thought it would be more like it was mentioned before: one's history is like lined up along a line. But there is no time: one is not traversing one's life along the line, but rather somewhat erratically, based on the memory of one's life. Such line would have to overlap with other lines, that's clear enough, but the traversal would have had no trajectory: you're always here and there, you could only fix your position in life relative to other people's lives, that's about it. Wait, if the traversal has no trajectory, then how can you call it a traversal? If you are omnipresent along a timeline, then you can't traverse it - as you said, you're just there. You're stuck experiencing all moments "simultaneously". If you only want to experience one moment at a time, that's where meta-time comes in - at any given meta-moment you'd be experiencing an ordinary moment, and jumps between non-sequential moments would take place within sequential meta-moments. ok-doki, let's check out the dictionary (webster), I keep only some pieces that I consider as more more pertinent than others:

      traversal: the act or an instance of traversing
      traversing: transitive verb
      1 a : to go against or act in opposition to : OPPOSE, THWART [...]
      2 a : to go or travel across or over; b : to move or pass along or through
      3 : to make a study of : EXAMINE
      4 : to lie or extend across : CROSS
      5 a : to move to and fro over or along b : to ascend, descend, or cross (a slope or gap) at an angle [...]

      intransitive verb
      1 : to move back and forth or from side to side
      [...][my emphasize] I didn't know that even a light ray can traverse the crystal :-)
      Now let's check out trajectory:

      trajectory
      Etymology: New Latin trajectoria, from feminine of trajectorius of passing, from Latin traicere to cause to cross, cross, from trans-, tra- trans- + jacere to throw -- more at JET
      1 : the curve that a body (as a planet or comet in its orbit or a rocket) describes in space
      2 : a path, progression, or line of development resembling a physical trajectory [my emphasize] Wow, this is realy interesting. Where these two words kind of approach each other is exactly at crossing: trajectory as to cause to cross, while traversal as to cross, and not only to cross without cause, but also to cross a slope or gap.
      Anyhow, it seems to me that one can traverse without making trajectory :-)

      Imagine a standard space vs. time graph with space as the y-axis and time as the x-axis. Without teleportation, there'd be a line pointing to where in space you are at any given time. With teleportation, the line is disjointed. Same thing with time vs. meta-time. Time on the y-axis, meta-time on the x-axis. At any given point in meta-time, you are at a certain point in time. Maybe the slope would increase with your speed through space (relativity). When you actually time jump to a disconnected period, the line becomes disjointed. Then we would have to traverse instead to move or to teleport [which is another way of moving: "to transfer by the act or process of moving an object or person by psychokinesis"]. That way:

      But if everything is simultaneous, there is no traversal and no meta-time, no "fixing of position" since the position would be fixed remain fixed to the entire timeline. we would still be (lying) across, moving to and from (just like going nowhere!), at (at least) two points "simultaneously", [just like a light ray traverses the crystal :-)], or acting in opposition (probably to time).
    63. Re:But what does that mean? by kalirion · · Score: 1

      Ok, do you agree that in the way you use "traverse", it is definitely a subset of "movement"? Movement happens from a start position, to an end position. It's not movement if you are at both start and end positions simultaneously for the entire "trip". When moving between normal space points A and B, you start at A and not at B, time passes, you are now at B and not at A. With time travel, substitute time and meta-time for space and time reflectively. But if you exist at both times A and times B "simultaneously", how can you claim to jump from A to B?

      we would still be (lying) across, moving to and from (just like going nowhere!), at (at least) two points "simultaneously", [just like a light ray traverses the crystal :-)],

      When you "lie across" you're not moving. Movement from "A and B" to "A and B" is not movement. Even if you want to call it "going nowhere", it becomes absolutely useless because the whole point was that you are supposed to be experiencing the events at A and then choosing to instead experience the events at B. That means you are not experiencing both at the same (meta)time. If I am omnipresent in the universe, it doesn't make sense for me to move in the same place just to experience being in Chicago. I'm already there. I'm already experiencing it. There is nothing left to do.

    64. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      Oops, I must go, I won't be able to use internet for about 12 hours, so I'll reply later...

    65. Re:But what does that mean? by ultranova · · Score: 1

      The phenomenon you explain here isn't a violation of the law, as the law doesn't apply at such scales.

      No. The "law" is only statistical. It isn't a hard, involatable law of nature at anyt level; it's simply that macroscopic entities have some many moving parts that the chances of entropy spontaneously decreasing in a given moment is inconceivably low. It is not zero, thought.

      In ultra-microscopic systems, on the other hand, there are so few moving parts that the chances of entropy decreasing are non-fantastical, and must be taken into account in practice.

      Looking at the consequences on a quantum level is probably useless, as quantum mechanics doesn't account for general relativity which is pretty basic to the nature of space and time. Trying to understand this in terms of string theory is even more futile in my opinion.

      Since my example isn't dependent on quantum mechanics or string theory, this is irrelevant.

      Of course, understanding why the second law os so basic and how it is related to the direction of the temporal dimension would probably help.

      Um, I just said why: there are more high-entropy disordered states than low-entropy ordered ones, so all other things being equal, the resulting state of a given change in the system is more likely to be a high-entropy one than a low-entropy one.

      There are far more possible states where the two gasses are evenly mixed in the box than ones where they are completely separated, so at any given point in time they are more likely to be mixed than neatly separated.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    66. Re:But what does that mean? by ioshhdflwuegfh · · Score: 1

      Ok, do you agree that in the way you use "traverse", it is definitely a subset of "movement"? Depends how you define traversal with respect to movement. For instance: gestures and postures are some kinds of movements (atomistically speaking for example they are definitely movements in the mathematical-physical sense, but of a very large numbers of atoms, etc). When I nod my head or wave my arm or wink or even walk, not to mention speak or write, am I really moving?

      Movement happens from a start position, to an end position. I can agree that something happens between two positions, or two postures, but which one is the start and which one is the end one, isn't that the whole question?

      It's not movement if you are at both start and end positions simultaneously for the entire "trip". When moving between normal space points A and B, you start at A and not at B, time passes, you are now at B and not at A. With time travel, substitute time and meta-time for space and time reflectively. But if you exist at both times A and times B "simultaneously", how can you claim to jump from A to B? Ok, this traversal business is like a bridge: it, in order to be a bridge must connect both A and B. One cannot have one half of a bridge (unless one cuts it in half along the bridge--one cannot cut the bridge transversally and still have a bridge).

      When you "lie across" you're not moving. Movement from "A and B" to "A and B" is not movement. Even if you want to call it "going nowhere", it becomes absolutely useless because the whole point was that you are supposed to be experiencing the events at A and then choosing to instead experience the events at B. That means you are not experiencing both at the same (meta)time. This "lying across" I think more in terms of a linear superposition than just being completely still. If you take a quantum particle in the box, it sort of moves from one end to the other, but actually and mathematically only forms a certain standing wave. This standing wave cannot be just formed in an instant, but once it's formed it is difficult to say that the particle moves along trajectory, or that it is at A but not at B etc.

      If I am omnipresent in the universe, it doesn't make sense for me to move in the same place just to experience being in Chicago. I'm already there. I'm already experiencing it. There is nothing left to do. Of course, it is not about being omnipresent--if we see clearly all the moments of life at once alined along the line, that is pretty much metaphysics of some meta-presence or whatever. But so is the claim that I am sitting here, resting my elbows on the table looking at the computer screen, etc, etc. To experience the moment, that is also close to some sort of mysticism, no?
      It also does not make exactly sense to say that you are in Chicago right now, I mean it might make sense for you but not for me: I have no guarantee that you are in Chicago right now, I of course would expect it to be true but based on some very non-trivial assumptions: that Chicago is a big city (the bigger the point (is this paradox? can we call Chicago point?) where you are the more accurately we can agree about someone's position, and same goes for the time: it is a week day, so it is less likely that one would go out of town, etc).

      I'll try to put these few things together: so moving would be like traversing points, if this motion is along a trajectory at all that trajectory is like a bridge: which means already there in advance, before the motion. Like a law of the motion, but if one would have had the knowledge of this law (epistemological problem) that would be the knowledge of all the bridges one passes: Chicago--New York--Boston, but also knowing of Boston when in Chicago. What is left in any case from such a trip is sort of a trajectory (meta-time, meta-history etc), that is true, but this trajectory is like a trace of a particle in a bubble chamber: there are small bubbles inscribed by the particle, or, there is a travelog in the case of person--this travelog can be always written in advance.
    67. Re:But what does that mean? by Mr+Z · · Score: 1

      Isn't velocity just slope? It's just dx/dt, dy/dt, dz/dt....

  11. Oh crap,.....not again by rimcrazy · · Score: 1

    Now we are all going to have to get jobs working for Inetech fixing the Y4D problem with computers........

    --
    "TV, a medium as it is neither rare nor well done." Ernie Kovacs
  12. So... Should I buy canned goods and water? by GundamFan · · Score: 1

    Will DHS raise the Astrophysical Phenomenon Terror (APPT) alert level to Orange? ...But seriously I wonder if we as 3 dimensional beings would even notice such a change? Isn't "time" only subtlety different from a physical dimension?

    --
    I don't give a damn for a man that can only spell a word one way.
    Mark Twain
    1. Re:So... Should I buy canned goods and water? by Paul+Rose · · Score: 1

      Yes, but so long as you have your water, plastic sheeting, and duct tape in your kit you will be OK in the event of a dimensional flip.

    2. Re:So... Should I buy canned goods and water? by Dr.+Eggman · · Score: 1

      Indeed they will. So great a threat does a dimensional flip pose that they'll be putting out a compendium of interactive simulations to illustrate such a treat to us "3 dimensional beings." Look for the DHS APPT Orange Box on October 10th!

      Be wise. Be safe. Be aware.

      --
      Demented But Determined.
    3. Re:So... Should I buy canned goods and water? by pclminion · · Score: 2, Insightful

      Isn't "time" only subtlety different from a physical dimension?

      This phrasing suggests that time is not a physical thing. Given that the variable "t" occurs in practically all dynamic equations of physics, I'd have to disagree with the assertion that time isn't physical.

    4. Re:So... Should I buy canned goods and water? by Jack9 · · Score: 1

      This phrasing suggests that time is not a physical thing. Given that the variable "t" occurs in practically all dynamic equations of physics, I'd have to disagree with the assertion that time isn't physical.

      This phrasing suggests that Math is not a physical thing. Given that Math occurs in practically all dynamic equations of physics, I'd have to disagree with the assertion that Math isn't physical.

      /try again

      --

      Often wrong but never in doubt.
      I am Jack9.
      Everyone knows me.
    5. Re:So... Should I buy canned goods and water? by pclminion · · Score: 1

      This phrasing suggests that Math is not a physical thing. Given that Math occurs in practically all dynamic equations of physics, I'd have to disagree with the assertion that Math isn't physical.

      No. Math is a tool for formulating the theory. Time is not a "tool," but an intrinsic PART of the theory. "Try again."

    6. Re:So... Should I buy canned goods and water? by Jack9 · · Score: 1

      You missed the sarcasm and the point. The logic is flawed and the conclusion incorrect. Try again.

      --

      Often wrong but never in doubt.
      I am Jack9.
      Everyone knows me.
    7. Re:So... Should I buy canned goods and water? by pclminion · · Score: 1

      You missed the sarcasm and the point. The logic is flawed and the conclusion incorrect. Try again.

      The logic is: Time is a part of most physical theories. Therefore time is physical. If this is flawed, I'd appreciate an explanation rather than a "You're wrong, fool."

    8. Re:So... Should I buy canned goods and water? by Jack9 · · Score: 1

      To reiterate,
      The logic is: Time is a part of most physical theories. Therefore time is physical.
      The logic is: Math is part of most physical theories. Therefore Math is physical.

      Making a statement using an absurd predication and conclusion is not logical.

      It's a jump to say that time is physical because it's a relative measurement TsubO.

      Time is not part of physical theories beyond our perception of before and after observations. Science is predicated on OBSERVATION (over time). Hence, Time is not part of theories at all, but how we measure and compare it. I didn't think it was necessary to break down how Science works.

      --

      Often wrong but never in doubt.
      I am Jack9.
      Everyone knows me.
    9. Re:So... Should I buy canned goods and water? by thegnu · · Score: 1

      I think he might be saying that time is a dimension and math is not, so your reductive snarky comment wasn't helpful, kind, or true. So you shouldn't have said it, according to Socrates.

      But then he's dead, so what does he know?

      --
      Please stop stalking me, bro.
    10. Re:So... Should I buy canned goods and water? by Jack9 · · Score: 1

      It doesn't matter what construct you put into the statement, it's not a logical claim or proof, it's nonsense. Snarkiness applies as it was true (in terms of coherence, of which Socrates was not a fan) and helpful in inspiring the following discourse.

      --

      Often wrong but never in doubt.
      I am Jack9.
      Everyone knows me.
    11. Re:So... Should I buy canned goods and water? by pclminion · · Score: 1

      The logic is: Math is part of most physical theories. Therefore Math is physical.

      Once again, math isn't part of the theory. It is the method by which the theory is specified. Physics still exists without math. The same can't be said of time. But you're boring, so I won't respond to any further bullshit.

    12. Re:So... Should I buy canned goods and water? by Jack9 · · Score: 1

      Try not to repeat simple statements that you think are clever, without actually assessing them. You wont get into circular conversations pointing out the inaccuracy of your favorite quote of the day...that you made.

      --

      Often wrong but never in doubt.
      I am Jack9.
      Everyone knows me.
  13. I wonder... by Anonymous Coward · · Score: 0

    If this could lead to parallel worlds.

  14. TFA by HalifaxRage · · Score: 1, Funny

    TFA can be found at our new domain, timecube.asia

    --
    bomb the us up set someone
  15. Plagarism! by Jeremiah+Cornelius · · Score: 3, Funny

    I first read this theory in Oolong Caloophid's seminal work: "Where God Went Wrong."

    More of this is elaborated in his development of these themes: "Some More of God's Greatest Mistakes," and "Who Is This God Person Anyway?".

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
    1. Re:Plagarism! by vorlich · · Score: 1

      Damn Babelfish!

      --
      Posts, MyBio or Sig, may contain satire, sarcasm, bolded nouns be sardonic or even witty & be Church of SD
    2. Re:Plagarism! by Anonymous Coward · · Score: 0

      "Where God Went Wrong."

      Nowhere.

      "Some More of God's Greatest Mistakes,"

      There were none.

      "Who Is This God Person Anyway?"

      Me.

    3. Re:Plagarism! by cumin · · Score: 1

      Now where is my towel?

      All I can find is this ugly thing I think I got from my aunt. I don't know what it is. hand the thing to reader

      --
      Back in my day when we chiseled our bits into stone and sent them by mule train from village to village...
    4. Re:Plagarism! by prat393 · · Score: 1

      "Who Is This God Person Anyway?"

      Me.
      Apparently, God's an anonymous coward.
    5. Re:Plagarism! by vorlich · · Score: 1

      I can only respond with the following image.

      --
      Posts, MyBio or Sig, may contain satire, sarcasm, bolded nouns be sardonic or even witty & be Church of SD
    6. Re:Plagarism! by julesh · · Score: 1

      Now there's a hoopy frood who really knows where his towel is.

  16. So how does this affect us? by icebrain · · Score: 2, Interesting

    So what does this mean for us, exactly? Would we still perceive things as we do now (only with some relativistic stuff changing), or does everything suddenly go nuts? FTL travel, maybe?

    And mostly-OT but seemed related: I remember a couple of SF short stories about something like this... one was "Mimsy were the Bogroves" or something like that, where two kids discover 4-dimensional toys from the future, then read "Jabberwocky" and figure out how to move in time.

    The other one was about a kid who befriends a neighbor working in 4-D stuff. The kid (because he's young and has an open mind or something) learns to move about in that dimension as well, and communicate with creatures living in other dimensions. Don't remember the title of that one, thoguh.

    --
    The meek may inherit the earth, but the strong shall take the stars.
    1. Re:So how does this affect us? by Qzukk · · Score: 4, Informative

      The other one was about a kid who befriends a neighbor working in 4-D stuff. The kid (because he's young and has an open mind or something) learns to move about in that dimension as well, and communicate with creatures living in other dimensions. Don't remember the title of that one, thoguh.

      I believe that's The Boy Who Reversed Himself. I remember having read that when I was in highschool.

      --
      If I have been able to see further than others, it is because I bought a pair of binoculars.
    2. Re:So how does this affect us? by Goaway · · Score: 1

      Without time, it's pretty hard to experience anything.

      Of course, it's kind of hard to tell how that would actually work out, as we still don't really understand time.

    3. Re:So how does this affect us? by Cyberax · · Score: 1

      The second one is called 'Tangents' by Greg Bear.

      But if our space-time will flip to 4D, then it will be a sad future for the Earth. For one thing, there's no stable planetary orbits in 4D...

    4. Re:So how does this affect us? by 3waygeek · · Score: 1

      "Mimsy were the Bogroves" or something like that, where two kids discover 4-dimensional toys from the future, then read "Jabberwocky" and figure out how to move in time.

      Sounds like the recent film The Last Mimzy, whose only redeeming feature was the Roger Waters soundtrack.

    5. Re:So how does this affect us? by bodino · · Score: 1

      That would be Mimsy were the Borogoves, the basis for the kid's movie "The Last Mimzy". Don't know about the other.

    6. Re:So how does this affect us? by shess · · Score: 1

      As someone else mentioned, it was more likely Tangents, in a short-story collection of the same name by Greg Bear. The neighbor was based on Alan Turing, he's doing research on visualizing higher dimensions with music, and the kid is able to actually see higher dimensions directly. Really similar to "Mimsy Were the Borogoves" in flavor.

    7. Re:So how does this affect us? by localman · · Score: 1

      Ah yes... the works of William Sleator. For my junior high years, no sci-fi author captured my imagination better. Favorites were Singularity, Interstellar Pig, The Boy Who Reversed Himself, and The Duplicate. At some point after becoming a fan, my school got him to come by and give a talk -- a cool guy, too. I made my first female friend based on us both liking his stuff.

      Anyways, great books for young (geeky) adults.

      Cheers.

    8. Re:So how does this affect us? by MythoBeast · · Score: 1

      The other one was about a kid who befriends a neighbor working in 4-D stuff. The kid (because he's young and has an open mind or something) learns to move about in that dimension as well, and communicate with creatures living in other dimensions. Don't remember the title of that one, though.

      I think I remember this one. The neighbor is creating speakers that will project sound into the fourth dimension, and attracts the attention of creatures that live considerably "dup" of us. The kid figures out how to actually see in the fourth dimension, and describes the creatures approaching. One of the creatures accidentally knocks a wall out of alignment with our three dimensions with its "elbow" before peeling the kid out of our normal three dimensions. It was an interesting short story, but I don't remember the title either.

      --
      Wake up - the future is arriving faster than you think.
    9. Re:So how does this affect us? by Anonymous Coward · · Score: 0

      There's also a short story by Greg Bear, 'Tangents', 1986 Nebula award.

    10. Re:So how does this affect us? by klossner · · Score: 1

      That's also The Universe Between by Alan E. Hourse.

    11. Re:So how does this affect us? by aminorex · · Score: 1

      > when I was in highschool.

      Funny. I read that as "when I was in holocaust."

      --
      -I like my women like I like my tea: green-
    12. Re:So how does this affect us? by Anonymous Coward · · Score: 0

      The other one was about a kid who befriends a neighbor working in 4-D stuff. The kid (because he's young and has an open mind or something) learns to move about in that dimension as well, and communicate with creatures living in other dimensions. Don't remember the title of that one, thoguh.

      I remember a similar story, but it was a scientist working on an experiment to bring a cube to absolute zero, which resulted in an accident allowing some woman (I can't even remember if she was a scientist or not) to "turn a corner" into another dimension that she couldn't perceive properly, though well enough to move about and "teleport" into another location back in her original dimension, but her child, who learned the same "turning" technique was flexible enough to start understanding the bizzare dimension. If I recall right, the scientists who analyzed the accident were able to use it as a kind of teleporter but it wasn't perfect, as one accident lead to steal beams being shipped to mars ending up in a canyon as molten slag...

      The child was further able to learn that the other dimension was a parallel earth that had been helping his reality with the teleportations but didn't have the math perfect, thus the occasional accidents, and that he and his mother would appear randomly in their world as babbling and unable to comprehend their surroundings, but able to react intelligently to the stimuli they provided... it was an old story (I remember them talking about mining oil on mars) but I remember enjoying it a lot... anyone else remember this?

    13. Re:So how does this affect us? by Anonymous Coward · · Score: 0

      "The other one was about a kid who befriends a neighbor working in 4-D stuff. The kid (because he's young and has an open mind or something) learns to move about in that dimension as well, and communicate with creatures living in other dimensions. Don't remember the title of that one, thoguh."

      That's probably a story I ran across in one of Gardner Dozois' annual "best of" collections. The boy was a Korean or Vietnamese orphan(?) and the neighbor was what's-his-name, the guy who worked on the Enigma project in WWII and later got prosecuted for being a poofter. In the story, he's living under an assumed name. The kid is able to communicate with the 4D people via a musical keyboard rigged to play some musical language.

  17. Not just what, but when? by Valdrax · · Score: 1

    Another important question is, "When is this expected to happen?"
    In our lifetime?
    In the lifetime of our species?
    In the lifetime of our sun?
    Before the expected "heat death" of the universe?

    --
    If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
    1. Re:Not just what, but when? by Basehart · · Score: 3, Funny

      I'm guessing some time in the future.

    2. Re:Not just what, but when? by timster · · Score: 4, Funny

      Silly... obviously the question is NOT "When will this happen?" Without time there is no "when", and no "happen", and no "will". Only "this".

      Should this research be correct, the only question left will be: "This?" Now and always and forever, this?

      --
      I have seen the future, and it is inconvenient.
    3. Re:Not just what, but when? by ArieKremen · · Score: 4, Funny

      The real question is not "when is this expected to happen?", but where? I think it already happened on the NJ turnpike a long time ago

      --
      -- Cave quid dicis, quando, et cui
    4. Re:Not just what, but when? by Anonymous+Monkey · · Score: 2, Insightful

      No, not at some time in the future. At some POINT in the future. If time is becomes a detention of physical space then future and past will be like left and right. I could never tell my left from my right as a kid.

      --
      We are the Borg...
    5. Re:Not just what, but when? by $RANDOMLUSER · · Score: 4, Funny

      I'm guessing some time in the future.
      You missed the whole point. Some place in the future.
      --
      No folly is more costly than the folly of intolerant idealism. - Winston Churchill
    6. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      this.time = new Point(x,y,z);

    7. Re:Not just what, but when? by jimstapleton · · Score: 1

      More importantly:

      Because our biology and minds are tied to a three dimensional existence...

      Would we know when/where it does happen?

      --
      34486853790
      Connection too slow for X forwarding? Try "ssh -CX user@host"
    8. Re:Not just what, but when? by Parasome · · Score: 1

      Should this research be correct, the only question left will be: "This?" Now and always and forever, this? Sounds awfully like what a Zen person might ask ;-)
    9. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      Silly... obviously the question is NOT "When will this happen?" Without time there is no "when", and no "happen", and no "will". Only "this".
      Should this research be correct, the only question left will be: "This?" Now and always and forever, this?


      But without time, neither can ghere be "now", "always" or "forever"? So: "This? and and, this?"

    10. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      wrong.

      some place in space

    11. Re:Not just what, but when? by prat393 · · Score: 2, Funny

      It's not the future anymore. It's just "that way". *Points*

    12. Re:Not just what, but when? by Dr.+Eggman · · Score: 5, Funny

      In the future, time will become very confusing...

      Dark Helmet: What the hell am I looking at? When does this happen in the movie?
      Sandurz: Now, you're looking at now, sir. Everything that happens now is happening now.
      Dark Helmet: What happend to then?
      Sandurz: We passed then.
      Dark Helmet: When?
      Sandurz: Just now. Were at now, now.
      Dark Helmet: Go back to then!
      Sandurz: When?
      Dark Helmet: Now.
      Sandurz: Now?
      Dark Helmet: Now!
      Sandurz: I can't.
      Dark Helmet: Why?
      Sandurz: We missed it.
      Dark Helmet: When?
      Sandurz: Just now.
      Dark Helmet: When will then be now?
      Sandurz: Soon.
      Dark Helmet: How soon?

      --
      Demented But Determined.
    13. Re:Not just what, but when? by saltydogdesign · · Score: 1

      "Question" implies an answer. The relationship between question and answer is temporal, in that one follows the other. Therefore, your statement is moot, insofar as "is" can be without "will be" or "was."

      --
      // This is not a sig.
    14. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      So THAT'S why people at Fark are all saying, "This." They're really trying say things in space-time terms, but all that's coming out in four-space terms is "This."

    15. Re:Not just what, but when? by prat393 · · Score: 1

      If you're existing in a Universe without a single time dimension, there can still be a subjective experience of time. Basically, your experience is wherever your experience is. If you're in a four dimensional space, and your awareness is moving through it, then whatever ordering you move through it in becomes your time. However, your subjective experience may then partially be in dimensions other than the one currently labeled as "time."

    16. Re:Not just what, but when? by Anonymous Coward · · Score: 1, Funny

      So you're saying the universe will become a Fark thread?

    17. Re:Not just what, but when? by tinkerghost · · Score: 1

      Ahh, everyone will become Zen masters overnight.... I always thought the whole journey to enlightenment was too slow.

    18. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      Owie! My head hurts.

    19. Re:Not just what, but when? by shdwtek · · Score: 1

      So is "this" the Ultimate question?

      This? 42.

      Hmm...

    20. Re:Not just what, but when? by TheWanderingHermit · · Score: 1

      No. That was just Electrodes from Planet 10 by way of the 8th dimension that thought they were back in the 8th dimension but were still over New Jersey.

    21. Re:Not just what, but when? by hitmark · · Score: 1

      whiskey tango foxtrot?!

      --
      comment first, facts later. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
    22. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      I was afraid it was happening already, but now I think it's just some bugs in the new "Web 2.0" slashdot comment system.

    23. Re:Not just what, but when? by Anonymous Coward · · Score: 0

      foxtrot uniform charlie kilo india november - alpha!

    24. Re:Not just what, but when? by lightknight · · Score: 1

      An odd thing to note is that Uranus, the 7th planet from the sun, has an orientation whereby each pole gets 42 years of continuous sunlight, and 42 years of darkness. I'll be honest, there are a number of oddities associated with that planet. Of course, as a scientist, correlation != causation, so I'll reserve judgement until I see some proof, but part of me wonders (if only in fantasy) if someone is home...

      --
      I am John Hurt.
    25. Re:Not just what, but when? by ioshhdflwuegfh · · Score: 1

      I'm guessing some time in the future. You missed the whole point. Some place in the future. It's not the future anymore. It's just "that way". *Points* But until it happens it is still in the future. That would make something like: Some that way in the future after the future.
    26. Re:Not just what, but when? by ioshhdflwuegfh · · Score: 1

      "Question" implies an answer. The relationship between question and answer is temporal, in that one follows the other. Therefore, your statement is moot, insofar as "is" can be without "will be" or "was." You mean like in: Will it rain tomorrow? When? Tomorrow. Ah, tomorrow! Of course it will rain. And it did indeed. I often remember those days.
  18. This can mean but one thing by Arthur+B. · · Score: 3, Funny

    Jeebus will return ! Clean your browsing history and cache.

    --
    \u262D = \u5350
  19. Time Travel? by GeekMarine72 · · Score: 1

    Does this perhaps we will unlock the mystery of time travel and be able to move about in it much as we do 3D space?

    1. Re:Time Travel? by Dr.+Manhattan · · Score: 1

      Does this perhaps we will unlock the mystery of time travel and be able to move about in it much as we do 3D space?

      Well, when you consider that one second ago is one light-second awa - i.e. abut 300,000 kilometers - then getting to one second ago would be about as difficult as getting to the Moon from Earth...

      In other words, we possibly could move about in time "much as we 3D space" - but we don't move around in that all that well, either. At least when compared to the speed of light...

      --
      PHEM - party like it's 1997-2003!
    2. Re:Time Travel? by brunascle · · Score: 1

      we might already move about it the same way we move through space, but we experience it only in one direction because of how our memories are created (or maybe some other reason).

      in order for time travel to actually be significant, your body would have to travel through time in one direction while everything around you traveled in a separate direction, which would be just as unlikely as it is now (AFAIK).

  20. Misleading summary by Ctrl-Z · · Score: 1

    The title of the article is: "Is the accelerated expansion evidence of a forthcoming change of signature?". It indicates that a change of signature is certainly a possible explanation, but that doesn't mean that there aren't other explanations.

    That being said, what is the best way to handle the signature change? Should I stand in a doorway or head for the storm cellar?

    --
    www.timcoleman.com is a total waste of your time. Never go there.
    1. Re:Misleading summary by jrwilk01 · · Score: 1

      Stop, drop, and roll.

    2. Re:Misleading summary by Anonymous Coward · · Score: 0

      Duck and Cover

    3. Re:Misleading summary by SpryGuy · · Score: 1

      You'll need lots of duct tape and sheets of plastic.

      --

      - Spryguy
      There are three kinds of people in this world: those that can count and those that can't
    4. Re:Misleading summary by Dragonslicer · · Score: 1

      That being said, what is the best way to handle the signature change? Should I stand in a doorway or head for the storm cellar?
      1. Put your hands behind your head
      2. Put your head between your knees
      3. Kiss your ass goodbye
      Sorry, there is no ??? or Profit.
    5. Re:Misleading summary by oracleofbargth · · Score: 1

      Log, blog, and troll.

    6. Re:Misleading summary by Anonymous Coward · · Score: 0

      Place brown paper bag over head, bend over and KYAG.

  21. Explanation? by Joe+Random · · Score: 1

    Can anyone explain, by way of analogy, what having four time-like dimensions and no time-like dimensions would entail? Would everything just . . . stop? Would our current motion through time carry forward through Newton's Laws, so that we don't even notice the switch? I did RTFA, and it's light on details. I attempted to RTF paper, and immediately zoned out. So, anyone understand this well enough to attempt to clarify?

    1. Re:Explanation? by Anonymous Coward · · Score: 0

      I guess it would be similar to how Death 'perceives' things on the Discworld...

    2. Re:Explanation? by Scrameustache · · Score: 1

      Can anyone explain, by way of analogy, what having four time-like dimensions and no time-like dimensions would entail? Would everything just . . . stop? Would our current motion through time carry forward through Newton's Laws, so that we don't even notice the switch? I did RTFA, and it's light on details. I attempted to RTF paper, and immediately zoned out. So, anyone understand this well enough to attempt to clarify? Clearly, this means you will end up sleeping with your grandma and becoming your own grandfather.
      It is... inevitable.
      --

      You can't take the sky from me...

    3. Re:Explanation? by Belacgod · · Score: 1

      For that matter, a spacelike Time is at least 2 degrees of wierdness beyond what we have now. Right now we're in a 1-dimensional, 1-way Time. Time travel would involve turning Time into a 1-dimensional, 2-way time. The Many Worlds theory is an endless branching-off of different 1-dimensional Times. 2-dimensional, 2-way Time would be, I guess, the ability to switch to any of the Many Worlds in order, and to go backwards and forwards along those timelines. 3-dimensional, 2-way Time, I guess, wouldn't be any different, if you constructed the Many Worlds in 3 dimensions.

    4. Re:Explanation? by xPsi · · Score: 5, Interesting

      Lets say I told you we had two spatial dimensions. You would imagine a plane with perpendicular x-y axes everyone knows and loves. If I asked you to draw the set of points that were equidistant from the origin, you would probably assume the geometry was Euclidian and would probably instinctively draw a circle (a good guess!). It is commonplace to hear "time is the fourth dimension." As first pass to visualize this, you might try to draw a two dimensional space-time plot: an x axis and a perpendicular time axis in a plane. If I then asked you to draw all the points equidistant from the origin, you would probably again draw a circle in this x-t plane. It seems to make sense, but is only true of time is a "space-like" dimension like "y" in the x-y plane. This is way Newton thought of things and it seems to be what the authors of the paper are advocating. But, unbeknownst to some people who cite "time as the fourth dimension," according to the theory of relativity, the set of equidistant points from the origin on a x-t graph would actually be hyperbole, not circles. This is because in relativity space-time is a Minkowski geometry, not Euclidian. All the weird stuff in special relativity like time dilation and length contraction come about because of this weird geometry. In fancier language, time has an opposite sign than space in the metric. The metric determines how distances are calculated in a given geometry. If time has the same sign as space in the metric, then space-time becomes Euclidian and one would say that time was a space-like. The article is probably extra confusing to non-physics people because most probably didn't know time wasn't space-like to begin with.

      --
      i\hbar\dot{\psi}=\hat{H}\psi
    5. Re:Explanation? by Anonymous Coward · · Score: 0

      > ... I attempted to RTF paper, and immediately zoned out.

      The effect you experienced gives you a small preview of what everything in the universe will be like after the flip. Wait, what was the question again?

    6. Re:Explanation? by at_18 · · Score: 1

      This is the clearest explanation I've seen of "space-like". Thanks.

    7. Re:Explanation? by Anonymous Coward · · Score: 0

      the parent is currently modded funny why exacly? i must be new here.

    8. Re:Explanation? by Stringer+Bell · · Score: 1

      The article is probably extra confusing to non-physics people because most probably didn't know time wasn't space-like to begin with.

      Advanced cake recipes are probably extra confusing to cats, because most of them can't conceive of creating baked goods to begin with.

    9. Re:Explanation? by dupup · · Score: 1

      Why is parent modded "Funny"? This seems like a cogent explanation of some esoteric physics. Helped me out, to be sure, with nary a chuckle forthcoming.

    10. Re:Explanation? by aminorex · · Score: 1

      > the set of equidistant points from the origin on a x-t graph would actually be hyperbole

      while in quantum mechanics, the same set would be metaphor.

      --
      -I like my women like I like my tea: green-
    11. Re:Explanation? by Anonymous Coward · · Score: 0

      So, do I understand from what you're saying that time wouldn't cease to be 'time', but it's behaviour might change, i.e. from a Minkowski geometry to Euclidian. What would be the implications of such?
      Presumably this would mean things like time-dilation cease to exist, and essentially Newtonian-only mechanics would arise? What effects would this have? Presumably the astronauts on the 98% light speed round trip to Alpha Centauri would find on their return that the same time had passed on earth as on the spaceship? Perhaps the speed of light would be attainable simply through sustained acceleration? Perhaps with strange results if you actually passed it, like moving backwards through time and/or space? Would only high speed events work out differently, with (to us) mundane interactions that are essentially Newtonian unaffected? Or could things like the speed of light be affected - possibly with everything that 'relies' on it also changing?
      Any ideas? Or is this the wrong track altogether?

  22. Doctor Who was right after all by Geof · · Score: 1
    From An Unearthly Child:

    SUSAN: It's impossible unless you use D and E!

    IAN: (OOV) D and E? Whatever for? Do the problem that's set, Susan.

    SUSAN: I can't, Mr. Chesterton! You can't simply work on three of the dimensions!

    IAN: (OOV) Three of them? Oh. Time being the fourth, I suppose. Then what do you need E for? What do you make the fifth dimension?

    SUSAN: (After a pause) Space...

  23. the intersection of mathematics and cosmology by circletimessquare · · Score: 5, Funny

    where the theories and calculations of the brightest brains in the room become indistinguishable from the random brainfarts of two stoners sitting on a smelly couch in a dorm room at 4:20 AM

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
    1. Re:the intersection of mathematics and cosmology by Oligonicella · · Score: 1, Troll

      Halle-friggin-leuyah! Sing it brother! I am so fed up with people treating this parlor conjecture as if it amounted to more than a tediously-written scifi blaster.

      Repeat after me -- math describes reality, it does not define reality. Just because you can make numbers dance, in no way does that mean said dancing jiggles anything other than your dendrites.

    2. Re:the intersection of mathematics and cosmology by StCredZero · · Score: 1

      where the theories and calculations of the brightest brains in the room become indistinguishable from the random brainfarts of two stoners sitting on a smelly couch in a dorm room at 4:20 AM

      That's not the intersection of mathematics and cosmology, dude. That's the Internet!
    3. Re:the intersection of mathematics and cosmology by CheeseTroll · · Score: 1

      Sadly (IMHO), there are many people who do not perceive reality this way. For them, the math *is* the reality, and the 'real world' is just a messy implementation of the math.

      --
      A post a day keeps productivity at bay.
    4. Re:the intersection of mathematics and cosmology by Anonymous Coward · · Score: 0

      Repeat after me -- math describes reality, it does not define reality. Just because you can make numbers dance, in no way does that mean said dancing jiggles anything other than your dendrites.

      To a mathematician, there's no difference between the two. The world of mathematics we've built up is internally consistent and proveable. It's more real than this physical world we're in, about which we can't say anything for certain.

      It's those dang physicists who you should be upset with. They find that mathematics that describes some experiment they've done, and then claim it can be used to predict something else. And then it doesn't. Who's "real" now, biatches?

    5. Re:the intersection of mathematics and cosmology by AstrumPreliator · · Score: 1

      Not quite, math is merely a language so it doesn't really describe anything. Other more practical fields can use this language, or subsets of it, to describe their observations. More accurately the math doesn't describe reality so much as it represents a simplified model of what we think reality is.

      To put this in the form of a (poor) analogy, the English language doesn't describe history. However, a history book can use English to describe, more or less, past events in a simplified way, e.g. WW2 was started by Nazi Germany. The English language can also be used in a fiction book to convey fictitious events, e.g. Einstein traveled back in time to assassinate Hitler.

      Alright, that really was a poor analogy... Basically I agree with you but I just wanted to add that math is a language and as such can be used in a number of ways, not all of which will agree with reality if put in a physical context.

    6. Re:the intersection of mathematics and cosmology by Fred_A · · Score: 1

      Wait, are you saying that time is really like a series of tubes now ?

      --

      May contain traces of nut.
      Made from the freshest electrons.
    7. Re:the intersection of mathematics and cosmology by Anonymous Coward · · Score: 0

      that's when we know we have hit singularity.

    8. Re:the intersection of mathematics and cosmology by Oligonicella · · Score: 1

      Uh, no. It's abstract. Touch the square root of 141.22.

    9. Re:the intersection of mathematics and cosmology by Anonymous Coward · · Score: 0

      Exactly! How real can my finger be if it can't even touch sqrt(141.22)?

      Or were you assuming that touch defines what is real? Not even physicists believe that -- touch a black hole, or an electron, or a partial pressure, or entropy.

      Or maybe you're a solipsist, so for you touch really does define what's real. What a bummer it would be to get beaten in an argument by an imaginary person like me! Sorry. You can go back to touching yourself now.

    10. Re:the intersection of mathematics and cosmology by Moebius+Loop · · Score: 1

      To put this in the form of a (poor) analogy, the English language doesn't describe history. However, a history book can use English to describe, more or less, past events in a simplified way, e.g. WW2 was started by Nazi Germany. The English language can also be used in a fiction book to convey fictitious events, e.g. Einstein traveled back in time to assassinate Hitler. Wow, I never thought I'd see Godwin's Law invoked during a discussion about advanced maths, but here we are...

      -phil

      --
      have you been seen on slash?
  24. isn't that what the vase of petunias said... by Anonymous Coward · · Score: 0

    when it & the sperm whale materialized above magrathea?

  25. great by nomadic · · Score: 2, Funny

    I really hope I'm not in the DMV when time ends.

    1. Re:great by grahamd0 · · Score: 1

      How would you be able to tell the difference?

  26. Quick - lets get to Milliways.. by eniac42 · · Score: 1

    "Ladies and gentlemen," Max Quordlepleen said, "The Universe as we know it has now been in existence for over one hundred and seventy thousand million billion years and will be ending in a little over half an hour. So, welcome one and all to Milliways, the Restaurant at the End of the Universe!"

    I'll have (wioll haven be) an order of Ameglian Major Cow Steak and a green salad...

    --
    "A nation that forgets its past is doomed to repeat it." - Churchill
  27. So... by UnRDJ · · Score: 1

    is this theory based solely on the observation that the universe is expanding?

    I could theorize that the fsm is stretching the universe with his giant noodley appendages, and I wouldn't be any more right than they are.

    1. Re:So... by Sciros · · Score: 1

      You certainly wouldn't! You might even be LESS right!

      --
      I like basketball!!1!
    2. Re:So... by 644bd346996 · · Score: 1

      Well, for starters, you haven't exactly solved any partial differential equations to show off how serious you are. Nor have you made any predictions. All you've done is say "this might be happening because..."

      The paper in question proposes a cosmology that would be rather elegant mathematically and also explain some outstanding questions, including the apparent presence of dark energy, while still allowing general relativity to hold in our "universe". Unfortunately, the only prediction the paper makes it that the universe as we know it will cease to exist at some point in the future. Calculating the date is left as an exercise for the reader (but they do give you the equations needed).

    3. Re:So... by scooter.higher · · Score: 1

      Actually, he may very well be more right. The following quote does not just apply to carbon dating, but any scientific experiment or testing:

      "But what our scientist does not realize is that every time he makes a measurement, the Flying Spaghetti Monster is there changing the results with His Noodly Appendage."

      Of course, being an open-minded Pastafarian, I reserve the right to change my mind based on the presentation of new evidence.

      --
      Ramen
  28. DnD by neokushan · · Score: 1

    So when my 3D becomes 4D, does this mean I do extra damage?

    --
    +1 IDisagreeSoHeMustBeATrollOrAnAstroturferOrAShill
    1. Re:DnD by AragornSonOfArathorn · · Score: 1

      So when my 3D becomes 4D, does this mean I do extra damage? No, it mostly stays the same. It goes from 3D8 to 4D6. I guess your minimum damage would go up by 1, but in most cases that won't matter.
      --
      sudo eat my shorts
    2. Re:DnD by Anonymous Coward · · Score: 0

      Your average damage would also go up by 2. Given a choice, I'll take a 4D6 damage role over a 3D8 any day.

    3. Re:DnD by Anonymous Coward · · Score: 0

      3*4.5=13.5
      4*3.5=14
      14-13.5=0.5

  29. Peer review by MillionthMonkey · · Score: 4, Funny

    The peers are going to review this a few centimeters from now; give them time.

    1. Re:Peer review by eclectro · · Score: 2, Funny

      You don't need peer review if you have enough branes.

      --
      Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
    2. Re:Peer review by DeVilla · · Score: 1

      The peers are going to review this a few centimeters from now; give them time.

      Ya, right. Give them a second and they'll take a mile!

    3. Re:Peer review by julesh · · Score: 1

      Dammit, now I'm worried about the possibility of a 21-dimensional zombie universe that lives only to eat the branes of other universes.

  30. Math does not equal PROOF!! by SlappyBastard · · Score: 1

    How many goddamned times do we have to have this discussion on here?

    Math is a language. It is a means whereby describe things to the best of our comprehension in a manner that best conveys our impressions to others.

    Just because a bunch of numbers add up does not mean it is proof of anything. Otherwise, Creationists are right and the world began in 4004 BC.

    --
    I scream. You scream. I assume that means we're both acquainted with the problem. We proceed.
    1. Re:Math does not equal PROOF!! by Anonymous Coward · · Score: 0

      Why, what numbers do the creationists have that "add up"?

    2. Re:Math does not equal PROOF!! by nate+nice · · Score: 1

      What the hell are you talking about? Since when does math have anything to do with numbers?

      --
      "If you are a dreamer, a wisher, a liar, A hope-er, a pray-er, a magic bean buyer ..."
    3. Re:Math does not equal PROOF!! by PortHaven · · Score: 1

      1 != 1

    4. Re:Math does not equal PROOF!! by Artifakt · · Score: 1

      I'm going to assume you are at least a little serious. The strict, young earth creationism model assumes the Bible is totally correct if taken totally literally. Thus, God used six literal 24 hour days to create the world, and all the accounts in Genesis after that add up to allegedly accurate totals.
              Genesis is actually very full of numbers, i.e.:
              Adam died at 930 years old. The oldest man was Methuselah, living to 969.
                                  or
              Noah, at 600 years old, boarded the boat, and it rained for forty days and forty nights. After 150 days, the boat rested upon the mountains of Ararat.

              There is actually a whole book of the old testament that is named Numbers!

                In the new testament, there are some similar references, for example, there are several monarchs described as simultaneously ruling different locations: Augustus, Cyrenius * as Roman governor of Persia, a particular one of the Herods as king of Judea. Dates can be generated, either from the Bible or from other sources such as Roman official records. Anyone can calibrate these to see if other sources show a possible overlap of reigns and check this against other dates, and lots of people have.

      * Publius Sulpicius Quirinus, to use the actual Roman name and not the Greek variant.

              Anyone can take these numbers and do basic math with them. The could also start with some independently confirmed date such as the Assyrian conquest of the region and add and subtract to see if the resulting dates match with other non-biblical sources, etc. Some of these sorts of calculations come out accurate or pretty close, some don't, but you can definitely do real math with them. Whether the conclusions this process points to are right or wrong, the math itself is valid.

      I actually find questions like yours rather eerie. I mean, you or anyone else is certainly free to decide you don't think the old testament accounts correspond to real history, or that the whole Bible is not a valid guide to the origin and nature of the universe, or many other things, but it sounds rather like you are claiming that, if the Bible says 16+17=33, then it must be wrong about that too.
              Of course, you may not mean it that way, but many people are so anti-religion that one reads really strange claims from some critics - for example claims that since Augustus is mentioned in the Bible, there was no real Roman emperor with that name. There was a prominent French philosopher who claimed that ALL religions with the idea of an afterlife got the idea from Egyptian sources, and when it was pointed out to him that Neanderthals had burial practices that seemed to indicate they believed in an afterlife, said the Neanderthals must have gotten the idea from the Egyptians. If this is the sort of point you are trying to make, you really should seek help.

      --
      Who is John Cabal?
    5. Re:Math does not equal PROOF!! by E++99 · · Score: 1

      The strict, young earth creationism model assumes the Bible is totally correct if taken totally literally.

      In which case when Jesus said, "beware the yeast of the Pharisees" he was actually warning against a fungal epidemic that the Pharisees were planning on spreading through infected bread.

      Noah, at 600 years old, boarded the boat

      Whether you take Genesis literally or not, it will be a fundamental point of failure if it is not translated properly. There are Hebrew words for "boat," but none are used for the Noah's "ark". The word used is "tebah", which probably means "box", "chest", or, if it came from Egyptian, which is most likely IMO, "coffin". The word is only used two places in the Bible, Noah's Ark, and Moses's Ark, which was a basket made of reeds. Both were waterproofed with pitch. As with Egyptian symbology, both would be the appropriate boat-like conveyances for traversing between the land of life and the land of death. Both were used to spare a life from an impending onslaught, which life would be used to found God's new church among mankind. (BTW, the "Ark" of the Covenant is a different word.)
    6. Re:Math does not equal PROOF!! by E++99 · · Score: 1

      Math is not a language. Mathematical nomenclature is a language. Math is the inherent way that numbers interact with each other. Math does prove things. In fact, it is the only thing that can truly be said to prove things. Given that the mathematical givens are true, the mathematical results are provably true.

    7. Re:Math does not equal PROOF!! by SlappyBastard · · Score: 1

      Really? So there is an inherent truth to it when we use imaginary numbers? Not so much.

      Math is not the only way to prove things. Repeatability is. Lots of science was put in place long before the mathematics that explain it.

      To the extent that math is repeatable, it is so because it has been taught as an international language. While it is nice to have everyone communicating in the same language, what we choose to describe with that language can hardly be considered truth simply because it is meaningful.

      While 1+1=2 is valid in mathematics, it doesn't provide a meaningful proof of anything. After all, I can take two lumps of Play Dough, slam them together and then how many lumps do I have? It ain't two lumps.

      Then, there is the fact that our choice of assigning numbers to describe physics has actually retarded our understanding of the universe. Thus, we waste huge amounts of time trying to make up crap like Dark Energy to excuse the fact that our math simply doesn't describe the universe we live in.

      --
      I scream. You scream. I assume that means we're both acquainted with the problem. We proceed.
    8. Re:Math does not equal PROOF!! by E++99 · · Score: 1

      Really? So there is an inherent truth to it when we use imaginary numbers?

      Yes. Not only is it an inherent truth, but the truth inherent in imaginary numbers happens to be extremely relevant to any possible kind of physical phenomena that involves waves, which includes nearly every physical phenomenon.

      Math is not the only way to prove things. Repeatability is. Lots of science was put in place long before the mathematics that explain it.

      Repeatability doesn't prove anything. It only increases your chances of being right. Everything in science is an approximation, and no scientific proof can every be perfect. A mathematical proof that is not perfect fails to be a proof.

      To the extent that math is repeatable, it is so because it has been taught as an international language. While it is nice to have everyone communicating in the same language, what we choose to describe with that language can hardly be considered truth simply because it is meaningful.

      Math is repeatable because there is only one way to do it. It doesn't matter how it's taught. You could teach someone that 13 is non-prime, but that person is not then able to separate a pile of 13 objects into multiple piles of equal size, because 13 INHERENTLY IS prime, regardless of language or what anyone is taught.

      While 1+1=2 is valid in mathematics, it doesn't provide a meaningful proof of anything. After all, I can take two lumps of Play Dough, slam them together and then how many lumps do I have? It ain't two lumps.


      If you want to use math to prove something about the physical world you also need physics. Given that you start with 1 pound of play dough, and slam another 1 pound of play dough into it, given the principle of conservation of mass, and given the mathematical truth that 1+1=2, you now have 2 pounds of play dough. This proof is as strong as the proof upon which the law of conservation of mass rests. Any law of physics is always subject to some finite amount of uncertainty, but laws of math are not.

      Then, there is the fact that our choice of assigning numbers to describe physics has actually retarded our understanding of the universe. Thus, we waste huge amounts of time trying to make up crap like Dark Energy to excuse the fact that our math simply doesn't describe the universe we live in.

      Are you against the study of physics then? How else do you suggest we learn about the universe, besides coming up with models to explain observed phenomena, and then testing and improving those models?
    9. Re:Math does not equal PROOF!! by SlappyBastard · · Score: 1

      "If you want to use math to prove something about the physical world you also need physics."

      Bingo. This is also where the last version of this discussion ended.

      "Are you against the study of physics then? How else do you suggest we learn about the universe, besides coming up with models to explain observed phenomena, and then testing and improving those models?"

      Not at all. What I have a problem with is the tendency for highly theoretical physics to just turn into an endless, and often pointless, math exercise. Then, when the universe doesn't fit the math exercise, people start just plain making shit up.

      At that point, it isn't a scientific theory. The entire point of a scientific theory is for it to be as exclusionary as possible. And if the exclusions fail too many times, then you have to toss the theory altogether -- not try to imagine even more unprovable crap and add more math.

      I'm not opposed to math or physics. I'm opposed to people making shit up. Which, especially when we get into the bigger theories of the universe and space-time, is 90% of what is being done.

      Keep in mind, no field in science has put more theories into the landfill than figuring out space and time. It wasn't all that long ago the universally accepted theories included friggin ether.

      --
      I scream. You scream. I assume that means we're both acquainted with the problem. We proceed.
  31. This would be Bad by damburger · · Score: 1

    Human physiology is fairly dependent on the laws of physics remaining the same. For example; Our cells consist of fluid, constrained by a cell membrane that prevents it escaping in any of the three spacial dimensions. The introduction of a fourth spacial dimension means instant, messy death.

    --
    If we can put a man on the moon, why can't we shoot people for Apollo-related non-sequiturs?
  32. "... about to ..." by dpilot · · Score: 5, Insightful

    So dpilot was talking with God, and God said, "To Me, a minute is like a million years, and a million years are like a minute." So dpilot said, "In a that vein, is a penny like a billion dollars, and a dollars like a penny?" God replied, "You've got it." Which led dpilot to ask of God, "Can you spare a penny?" "Sure," said God, "in just a minute..."

    When you say "about to" in sports, something generally happens pretty fast.
    When you say "about to" in geology, something generally happens pretty slow.
    Generally speaking, saying "about to" in cosmology is to geology as geology is to sports.

    But not always. At some points in time, the volcano under Yellowstone does go off. Likewise, supernovas happen, and perhaps brane changes too. But to say "about to" or "soon" is just meaningless to human scales of time.

    --
    The living have better things to do than to continue hating the dead.
    1. Re:"... about to ..." by Oligonicella · · Score: 1

      Meaningless in terms of observed reality as well.

    2. Re:"... about to ..." by I+don't+want+to+spen · · Score: 1

      I remember going to the London Planetarium as a kid and seeing a presentation. They mentioned that the sun would expand and destroy the Earth in a few billion years. One of the audience said 'did you say million or billion?' The reply was 'billion', to which the response was 'That's alright then!'

      --
      Don't go to a brothel if you want to buy broth
    3. Re:"... about to ..." by aadvancedGIR · · Score: 1

      "But to say "about to" or "soon" is just meaningless to human scales of time."

      Until one of those things actually happens nearby making a few minutes the most meaningfull of the live of many people. In that reguard, your examples are good examples for the subject of the article: they are very rare (even potentially unique in the case of time becoming a spacial dimension), but if/when they happen, they do so in a very short timeframe, even compared to human life (a supernova or giant volcano eruption will probably last a few weeks, and might kill you in a couple of seconds if you are too close).

    4. Re:"... about to ..." by dpilot · · Score: 1

      I was using "about to" in the predictive sense. You're absolutely right, some of those events do happen quite "quickly," even by human or even electronic scales, but in your case we're using the equally fuzzy word, "recently," which is also time-scale dependent. The key however is the event not being in the future.

      --
      The living have better things to do than to continue hating the dead.
    5. Re:"... about to ..." by rubycodez · · Score: 1

      don't worry about the earth getting destroyed, in four or five hundred million years the sun will have expanded sufficiently to heat the earth such that all but some bacteria will be dead. But to human beings, is there really any difference between a million years from now or a billion? a million years ago the only human-like creatures looked more ape than what we'd call human.

  33. no more time: end of universe? by Janek+Kozicki · · Score: 1
    That strangely fits with the book I've just finished yesterday ;)

    hopefully The Chaos will save us!

    --
    #
    #\ @ ? Colonize Mars
    #
  34. And YOU can profit! by dpbsmith · · Score: 1

    YOU can profit from the coming singularity! Singularity Investor has the answer!

    Sure, it sounds bad, but with every big change comes winners and losers and you can be one of the winners if you act now!

    Oh, wait, that's how to profit from that other singularity...

  35. My time-tail is bigger than yours by Enoxice · · Score: 1

    Does this mean that the universe is going to suddenly go All of an Instant on us? Because that'd be pretty sweet.

    --
    Anyone else think the comments just weren't rendering right before they turned off ABP and saw ads?
  36. Define "about to"? by WibbleOnMars · · Score: 5, Insightful

    I'd like to know how they define "about to flip".

    Are we talking about something they see as imminent -- could happen at any moment?
    Or are we talking about geological time scales -- it'll happen in a few hundred thousand years, give or take?
    Or do they mean cosmological scales -- where 'about to happen' means somewhere in the next ten or twenty million years?

    Or is the whole question of when a silly thing to ask, given that they're talking about the end of time as sequential/chronological?

    1. Re:Define "about to"? by Alsee · · Score: 1

      You know how the universe is expanding? And that the expansion appears to be slowly increasing? This theory explains exactly that. The current expansion keeps going and keeps slowly increasing. The "flip" would happen shortly after the moon zooms away at the speed of light.

      In other words it won't be happening this week. Nor this year. Nor in the next million years. Keep adding zeros for a while and sooner or later you'll hit it. It happens at the (subjective) end of the universe - which happens when we already expected it to happen. This theory just explains why it looks like that's what's going to happen.

      I read the paper and I don't recall it ever suggesting it was "about" to happen. That part was added by random people talking about the paper.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  37. It has to be linked by rk · · Score: 1

    This explains the rudiments of string theory.

  38. You've never read anything this funny... by Impy+the+Impiuos+Imp · · Score: 1

    I wonder where the Bible predicts this will happen.

    Update: 10/09 18:08 GMT by Impy: Oh, wait. That wasn't peer reviewed, either.

    --
    (-1: Post disagrees with my already-settled worldview) is not a valid mod option.
    1. Re:You've never read anything this funny... by cumin · · Score: 1

      Having people agree with you doesn't make you right or wrong. Truth is independent of confirmation, but confirmation does tend to yield practical results more often than trying to use untested ideas. That said, the Bible has yielded beneficial practical results for many people, and yes, unfortunately been used as an excuse for a lot of detrimental results as well. The short of it is that the Bible itself doesn't do anything good or bad, but a lot of good people believe it and some bad people do too.

      All that said, the answer to the implied question, does the Bible cover that? The answer is yes, but perhaps little better than dozens of other texts, and not nearly as in depth as dozens of science fiction books. Anytime someone posits an eternity, independent of observable reality, they are suggesting that something exists that is not dependent on the progression of time as we've observed it. The Bible, though not alone, certainly posits this as a certainty. God would have to be outside of time, and so would any soul that is destined for eternity. This would be an interesting twist on how God's plan for the application of physics might cover said eternity.

      --
      Back in my day when we chiseled our bits into stone and sent them by mule train from village to village...
  39. Old, old old news by bradgoodman · · Score: 2, Informative
    This is nothing new at all.

    Relativity talks of space and time as a single 4-dimensional 'spacetime'.

    M-Theory, Superstrings, p-Branes, and a billion other theories all say there are 10 (or 11) dimensions, including things like two-dimensional "time" and "imaginary-time" dimensions, smaller "curled-up" spacial dimensions, etc.

    1. Re:Old, old old news by Creepy · · Score: 1

      yes, 4-space is essentially 3-space objects over time, which is the basis of relativity (in as best layman's terms as possible - more importantly, one 3-space object relative to others in time).

      Having not read the paper (not that I'd understand it - I've had some relativity, but no string theory) their argument is saying "there is no time," but you could argue "there is no space" using relativity because the third dimension technically covers all space. Space-time is probably the best name for it - an object at a particular position at a particular point in time relative to other objects at any moment in time. I'm guessing this theory essentially allows for one object at a particular moment in time to be compared to an object at a different moment in time and thus they say time is a non-factor, but it may entirely be due to bad terminology (should be space-time).

    2. Re:Old, old old news by bradgoodman · · Score: 0
      Yes - this is almost a hundred-years old.

      Relativity, in a nutshell, states that everything in our universe is moving at a constant speed (i.e. the speed of light,) through a 4-dimensional space-time (or spacetime).

      Einstein explicitly refers to space and time as spacetime - a single unit, with four dimensions. All mathematics in relativity treat space (3) and time (4) as equal four-dimensional vectors.

      You can actually go back to everything in "classical" (Newtonian) physics, and rewrite all the equations (like velocity, acceleration, force, gravity, etc) that refer to space and time (differently and separately), treating them as a single 4-d vector, and it not only works - but take into account all kinds of phenomena that we don't observe in our daily life, but which has been predicted and experimentally verified, all starting back around 80 years go (or so).

      Again, Nothing new here...

    3. Re:Old, old old news by Creepy · · Score: 1

      Hmm... I sorta disagree - that is a fairly close description of the postulates for Einstein's theory of Special Relativity, but it is lacking the requirement of observer(s). I think you're referring to General Relativity (see Wikipedia), however, which is more accurate, but also more confusing. I was attempting to avoid getting into this discussion with my initial post, mainly because I've had very little General Relativity (hey - I got my minor and got out ;)

      Odd... I remember my textbook from years ago always calling it space-time (it was italicized when used in equations), but apparently spacetime is the actual name. I suppose the real reason is not to get it mixed up with "space minus time."

    4. Re:Old, old old news by bradgoodman · · Score: 0

      "means that only massless objects (such as light itself) travel at the speed of light"

      True - but through space - and such objects do not move through time at all - or they "never age".

      The faster one moves through space, the slower they are through time. The vector sum of the three spacial velocities, and the one timewise velocity always equals "C".

      As the other person pointed out, speed is relative - so if you are looking at these velocity vectors, they are relative themselves, because velocity itself is relative. (I also wanted to avoid this entire topic.)

    5. Re:Old, old old news by bradgoodman · · Score: 0

      something can "move through space" but not move through time

      This is (mathematically) what light does, or something without mass can do.

      an object cannot go from having a world line with time-like tangent vector to one with space-like tangent vector (and these are 4-vectors we're talking about). This is why I'm trying to explain to you that what the OP said is hopelessly incorrect.

      I agree, 100%.

      I didn't read the paper - my remarks were towards Slashdot's explanation of it - particularly the first sentence.

      "The Universe is about to flip from having three dimensions of space and one of time to having four dimensions of space.

      My remark was, that relativity has already treated space and time as a single 4-dimensional unit.

    6. Re:Old, old old news by Creepy · · Score: 1

      hmm... yeah, I'm reading into that way too much. I'm fairly certain the poster meant is the speed of light is constant for all observers (which is part of the postulate for the theory of special relativity), but in that case, the "everything is moving" part is incorrect. I think what is meant is everything is observed using the same constant speed (the speed of light in a vacuum) with relative position and velocity of observer and observee given in spacetime. Still, that isn't enough to cover the theory in a nutshell, as that misses such stuff as Einstein's famous potential energy equation E=mc^2 (which was debunked as incorrect in another Einstein theory, as I recall, but is still very popular).

      Spacial Relativity was always a bit mind-bending to me anyway - if you don't have a reference (say, for instance, the observer closes his/her eyes), how do you know, say, a particle is not, in fact, going faster than light during the time it is not observed (OK, yeah, I know too much about Schroedinger)?

  40. Next thing you know youre going to tell me by unity100 · · Score: 1

    we are going to transcend into another dimension with the flip... wait ! thats nothing new is it ! "when the mooooon is in the seveenth houuseeee, and jupiteeerr aliiggnss wiiith maaarss"

    maybe mamas and papas got it right.

    1. Re:Next thing you know youre going to tell me by dwye · · Score: 1

      > maybe mamas and papas got it right.

      The Fifth Dimension, among others, but never the Mamas and the Papas. They only did John Philips' songs, not Off-Broadway show tunes.

  41. The 1960's called... by bhmit1 · · Score: 1

    ...they want their band back.

  42. New rule of web hosting by g-san · · Score: 1

    Don't put anything you want smart people to see in a directory named /ads/

  43. explanation by someone1234 · · Score: 1

    What happened to TFA will happen to all of the rest of the universe.
    It isn't slashdotted, it is just frozen in time.

    --
    Patents Drive Free Software as Hurricanes Drive Construction Industry
  44. Get set... by Anonymous Coward · · Score: 0

    When the new space dimension appears there will be a land rush!

    I can see it now, those people selling land rights on the moon will start taking offers for forth dimensional rights.

    1. Re:Get set... by maxwell+demon · · Score: 1

      When the new space dimension appears, people will lack the time to rush for it.

      --
      The Tao of math: The numbers you can count are not the real numbers.
  45. The Article by Anonymous Coward · · Score: 0

    Not that anyone reads them, but due to the slashdotting, here ya go:

    It don't get much weirder than this. The universe is about to lose its dimension of time says a group of theoretical astrobods at the University of Salamanca in Spain. And they got the evidence to prove it.

    The idea comes from the study of braneworlds: the thinking that the universe we see around us is a 4-dimensional cosmos called a braneworld embedded in a multidimensional universe. The "signature" of our universe is the number of space and time-like dimensions it has: in our case we got 3 space-like dimensions and one time-like dimension. It's what astrobods call a Lorentzian universe. So far so good: lots of astronutters think the same thing.

    But our universe may not always have been like this. Some theorists think it may once have had a Euclidean signature meaning that all the dimensions were space-like. Now Marc "Bars" Mars and a few pals in Spain say that the Universe's signature might be about to flip from Lorentzian to Euclidean. In other words, our dimension of time is about turn space-like. Gulp!

    This ain't entirely bonkers and here's why. Bars Mars has calculated what it's like to be an observer in a universe that is about to flip and get this: it would look as if it were expanding and accelerating away from us. Sound familiar?

    Yep, it's exactly what astrobods have been observin over the last few years, a phenomenon they attribute to dark energy. If Bars Mars is right, dark energy ain't got nothing to do with it and we're all starin' down the barrel of a cosmic catastrophe.

    Still, maybe four space-like dimensions will be better than three. Who needs time anyway?

  46. All you D & D players by Ilan+Volow · · Score: 2, Funny

    Get that last game in before your game stops working with your newly created 144-sided dice.

    --
    Ergonomica Auctorita Illico!
  47. Lorentzian to Euclidian transformations... by jnaujok · · Score: 3, Funny

    All this talk about time becoming a spatial dimension and realities collapsing is making my brane hurt.

    Yeah, I said it.

    --
    Life, the Universe, and Everything... in my image.
    1. Re:Lorentzian to Euclidian transformations... by Anonymous Coward · · Score: 0

      Now, now; be careful - don't get your mind stringed along too far. You don't want to get all tangled up, now do you?

  48. Is this the break IPv6 needs? by hoopycat · · Score: 1

    All things being equal, this might just be what North America needs to get IPv6 deployment stepped up a notch. I know I'm going to be asking our router vendors whether their IPv6 solution is the key to meeting our customer's demands through the upcoming Euclidean braneworld revolution.

  49. Everyone missed this issue... by BiloxiGeek · · Score: 1

    The new marklar will not only mean all our marklar's are obsolete, but our marklar's will actually cease to function as well. Marklar told marklar personally that a new marklar is in developement. Should the marklar come to be, a new marklar will be issued to each marklar so other marklar's can tell a marklar from a marklar. Don't you marklars get it?

    --
    Do not meddle in the affairs of dragons, For you are crunchy and go well with ketchup.
  50. Nothing to worry about. by f2x · · Score: 1

    After RTFA I quickly delved into the PDF for more information. Now I'm left feeling like I'm the butt of another technobabble joke. It's looking more and more like string theory is getting a bit frayed.

    Something tells me that no matter how much we all secretly wish for a cataclysmic event of biblical proportions so we can live out our sci-fi fantasies, there just isn't going to be anything that significant to happen over the next few billion years.

    Want an adventure? Go outside! The universe is always unfolding as it should, and you get to be a part of it.

    --
    Blessed with all the brains that God gave a duck's ass, and twice the charisma.
  51. I have a rebuttal. by RandoX · · Score: 1

    Uh... what?

  52. Time doesn't exist? by TheBearBear · · Score: 1

    I always thought of time as an abstract concept, with no interactions in the real world. Kinda like imaginary numbers. It's useful for us to calculate with, but it doesn't exist as a travel medium or physical medium. You just move around in 3D space thats it. I can't comprehend how you can move through time! I'm most likely wrong cos I'm not a scientist or anything so maybe someone can explain it to me :D.

  53. Mileage? by TheRaven64 · · Score: 4, Funny

    Update: 10/09 16:06 GMT by Z : A few readers have written in to point out that the article is not peer-reviewed; your mileage may vary. So may your yearage, presumably.
    --
    I am TheRaven on Soylent News
  54. Hope not. by mattr · · Score: 4, Interesting

    I knew 3 answers to the Fermi Paradox. Either intelligence quickly builds into quiet-looking shells like in Charlie Stross' Accelerando, or by virtue of being conscious we humans have somehow carved out a light cone or domain excluding other intelligences, some wierd cocoon: it is impossible physically to communicate because other domains have other physics. There's a neat scifi story about that too. The third is a land mine in physics, waiting for young civilizations to liberate enough power to fry them. Heinlein did that one, it's a nasty one. Now a fourth: the universe really is out to get us. Not just out to get aggressive monkeys that want to learn high-energy physics, but even to the point of making a state flip ever so often. I think this last one (today's news) is pretty unlikely to happen any time soon but nevertheless it is a future killer, something harder to understand than the burning out of the stars in the far future. None of these are very nice ideas but I hope some physicists will step up to answering what the latest theory says about when it might happen and whether it could operate on a patchwork basis, killing other civilizations while our planet was still cooling.

    1. Re:Hope not. by quantum+bit · · Score: 1

      Now a fourth: the universe really is out to get us. Well, I forget exactly when the available evidence started indicating the possibility of accelerating expansion, but that theory has been around for a while. Not to mention big crunch or heat death before it. This is just another means by which it could happen.
    2. Re:Hope not. by Ristol · · Score: 2, Interesting

      All wrong. See, in the future, we're gonna create robots whose only goals are the well-being of humanity. They'll eventually realize that it would benefit us if we were the only intelligent race in the galaxy. So when they eventually become omnipotent, they'll travel back in time and 'choose' a universe for us in which Earth hosts the only life-forms.
      Seriously, I read it in a book!

      --
      What wouldn't Jesus do?!
    3. Re:Hope not. by naoursla · · Score: 1

      Or maybe space is really, really big and there just isn't much interaction between things unless they are local.

      There is another story about how the supercollider built in Texas opened a wormhole to parallel universes (which are actually a lot closer than the nearest star). We encountered a few different species one of which is intent on colonizing as many nearby universes as possible.

      It was written by one of the physicists involved in the cancelled Texas supercollider. I can't remember the name at the moment.

    4. Re:Hope not. by khallow · · Score: 1

      by virtue of being conscious we humans have somehow carved out a light cone or domain excluding other intelligences, some wierd cocoon: it is impossible physically to communicate because other domains have other physics. There's a neat scifi story about that too. Distress by Greg Egan covers that theme.
    5. Re:Hope not. by kalidasa · · Score: 1

      Or humans are the only ones who use radio to communicate - nobody else got forced into the technological chute the way we did.

    6. Re:Hope not. by Auraiken · · Score: 1

      Which book? I'm looking for some to read on these sorts of things. :D

    7. Re:Hope not. by Anonymous Coward · · Score: 0

      Greg Bear explored another solution to Fermi's Paradox in Forge of God; that there exist advanced civilizations so hostile that they wipe out any potential competitors as soon as they become aware of them. In other words, as soon as a new civilization starts emitting detectable signals, it is automatically targeted by advanced autonomous probes (which may take decades, or more, to reach the system) and destroyed. (Similar to Saberhagen's Berserker's in this regard)

      In such a universe, stealth is the only defense.

      That's a scary one, and all too plausible if predatory instincts are not unique to Earth. Makes you wonder if a probe could be on its way right now...

    8. Re:Hope not. by Anonymous Coward · · Score: 0

      Radio is an insufficient answer.

      Space transportation a mere couple of centuries more advanced than ours allow stepwise colonization of the galaxy on timeframes of mere millions of years. If the evolution of intelligent life is as likely as the people who do SETI seem to think it is, there should be millions of solar systems like ours where intelligent life had a jump on us by millions of years. If just one in a million intelligent species are of a type that would do galactic colonization, then humanity would never have evolved, because the planet would have been occupied by another technological species or ten before the first ancestral apes got out of the trees.

    9. Re:Hope not. by Anonymous Coward · · Score: 0

      John Cramer, Einstein's Bridge.

      (I love Professor Cramer's physics, but his writing is pretty wretched on the character front.)

    10. Re:Hope not. by David+Gerard · · Score: 1

      "The third is a land mine in physics, waiting for young civilizations to liberate enough power to fry them. Heinlein did that one, it's a nasty one" Which Heinlein was that? (I don't disbelieve you, I just don't remember it.)

      --
      http://rocknerd.co.uk
    11. Re:Hope not. by mattr · · Score: 1

      Hi, I found it. The story is called "Blowups Happen" and part of the plot is mentioned in Wikipedia. I don't want to spoil it for you though.

    12. Re:Hope not. by kalidasa · · Score: 1

      I've read this argument before (can't remember, but it was in a conference proceeding). The economic costs of stepwise colonization aren't being factored in.

    13. Re:Hope not. by Alsee · · Score: 1

      This time flip idea has no relevance to the Fermi paradox. This flip theory merely attempts to explain the basis behind the universe-as-we-already-know-it. It attempts to explain the big bang, and the current Hubble expansion of the universe, and that the Hubble expansion appears to be slowly increasing, and that in the far future it seems that our universe may end-as-we-know-it in a runaway expansion.

      Yesterday we had the Fermi Paradox in the universe as we know it, and today we have exactly the same Fermi Paradox in exactly the same apparent universe, just with a new backstory for that universe. The Fermi Paradox is untouched and unanswered by the new theory.

      -

      --
      - - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
  55. Comment removed by account_deleted · · Score: 4, Informative

    Comment removed based on user account deletion

  56. Global dimension shifting by IGnatius+T+Foobar · · Score: 0, Flamebait

    Clearly this change of the fourth dimension from Lorentzian to Euclidean signature is happening because we are consuming too many fossil fuels and generating interdimensional carbon dioxide! Someone please alert Al Gore!!

    --
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  57. Peer-reviewed? by Kjella · · Score: 1

    Update: 10/09 16:06 GMT by Z : A few readers have written in to point out that the article is not peer-reviewed; your mileage may vary.

    Does that mean that all the other articles on slashdot are peer reviewed? I think it's great if slashdot does some more fact-checking on what goes through, but I kinda always assumed that anything posted on slashdot was typically highly sensationalist if not complete bullshit.

    --
    Live today, because you never know what tomorrow brings
  58. It is almost physically painful to see by Nephrite · · Score: 2, Funny

    slashdotters comment on science topics. Top comments are always "Funny" because no one really understands what it's all about and so everybody just makes stupid jokes instead.

    1. Re:It is almost physically painful to see by smclean · · Score: 1

      Hahah, good one! +1 Funny!

      --

      "'Yrch!' said Legolas, falling into his own tongue."

    2. Re:It is almost physically painful to see by kasperd · · Score: 1

      no one really understands what it's all about
      Considering the resume on this one, I'd say everybody is quite well excused.
      --

      Do you care about the security of your wireless mouse?
  59. Do you ever get the feeling... by dskoll · · Score: 1

    ...that most of modern Physics is just one giant put-on? That string theory, branes, etc. are about as grounded in reality as counting angels on pinheads?

    1. Re:Do you ever get the feeling... by maxwell+demon · · Score: 1

      Most of modern physics is not string theory, branes etc.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    2. Re:Do you ever get the feeling... by thegnu · · Score: 1

      Most of modern physics is not string theory, branes etc.

      Not according to PBS...
      --
      Please stop stalking me, bro.
  60. My crude guess by khallow · · Score: 3, Interesting

    It appears to me that this is a purely mathematical result. They are basically saying that an anti-de sitter bulk, the interior of anti de Sitter (AdS) space which is a constant negatively curved (or constant positive cosmological constant) with one time-like dimension (Lorentzian space) can be glued to a euclidean space smoothly along the boundary of the two spaces. Classically, this is of little relevance since time-based trajectories would stop at the boundary (either take infinite time to arrive or the system would "rip" itself apart at the boundary). Instead there could be (though not addressed in the paper) observable quantum effects from having something past the boundary even if it is purely spatial. Space-time states might extend over the boudary into this other space. So you might end up with the strange situation where parts of the universe are interacting beyond the end of time.

    This paper doesn't tell you whether that occurs or not. But it does indicate that it is possible for quantum systems to have both Lorentzian and Euclidean space components seamlessly connected.
    1. Re:My crude guess by Anonymous Coward · · Score: 0

      I wouldn't care really.

      Either we learn to travel through the whole universe (or multiverse) using black holes or space worm holes, or we figure out the date of the collapse of time and we simply extend our time as much as we can by living as far away from black holes as we can (because time slows down close to them) or simply by travelling less faster.

      Another possibility would be to enter a black hole so that time flows backwards. The collapse of time would happen in the past: Problem solved!

      Before arriving the big bang we would have to reverse the time (just in case time collapses again before the big bang) so we can keep going back and forth in this universe.

    2. Re:My crude guess by ioshhdflwuegfh · · Score: 1

      Thanks for the post, the first one I've read so far that has something to say about the paper!

  61. Eternal Life by goombah99 · · Score: 1

    So does this mean I will live forever, but die if I go too far from where I started?
    If I can't ever go back in time now, can I then never go back in space?
    We all march through time at the same "rate" (what ever that unitless velocity means!), does this mean we will now all have to move through space at the same velocity?

    And the biggest question: Right now I'm a single entity that exists as collection points in 3 dimensions, and a collection of lines connecting them through time. If my points in space diverge I atomize. If there's no time how do I move in space?

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:Eternal Life by kalirion · · Score: 1

      I'd say that without time we'd all be frozen as change from one state to another would no longer be possible. That means no movement and no thought. As far as we're concerned, everything would cease to exist.

    2. Re:Eternal Life by moderatorrater · · Score: 1

      So does this mean I will live forever Forever is a concept that requires time's motion, therefore, that question is meaningless. Just as you inhabit a certain portion of space now, you will also inhabit a certain portion of time.

      We all march through time at the same "rate" (what ever that unitless velocity means!), does this mean we will now all have to move through space at the same velocity Since velocity is distance over time, velocity has no meaning with time's motion. Also, as the speed of light has shown us, you can think of everyone as moving at the same speed (the speed of light) already, it's just that most of the motion happens in the dimension of time. If you were to speed up in the other three dimensions (like, say, take a trip to alpha centauri), you would move more slowly in the fourth dimension. However, that only holds true if the special theory of relativity holds true, which string theory does not necessarily do (it starts from a quantum mechanical base).

      If there's no time how do I move in space? Since movement is a form of velocity, it's meaningless without time. To take a 2-dimensional metaphor, this is like drawing a circle on a piece of paper. Were you to take that circle and show it with time as a third dimension, you would get a cylinder. If the circle moves over time, then the cylinder will change shape from just a straight cylinder to a cylinder that curves. We'll be much the same way, although it's hard if not impossible to imagine a fourth spatial dimensions, so good luck.
    3. Re:Eternal Life by ConceptJunkie · · Score: 4, Funny

      That means no movement and no thought.

      Don't look now, but it's already happened in Washington, D.C.

      --
      You are in a maze of twisty little passages, all alike.
  62. M-Theory is bad science by Anonymous Coward · · Score: 1, Informative

    A few readers have written in to point out that the article is not peer-reviewed

    Not only that, it is based on M-Theory (is that still what they are calling it these days?). M-Theory was the brain child of a bunch of mathematicians; an attempt at building a model that could resolve the conflicts between general relativity and quantum mechanics.

    The equations that they produced seem to resolve those conflicts, but do so by proposing the existence of a whole host of previously unobserved (and currently unobservable) entities. Good arguments can be made that this violates the principle of Ockham's Razor. Either way, the bottom line is that the evidence just isn't there.

    So far, M-Theory is not really a Theory, but rather an untested hypothesis. Once the evidence rolls in I will change my tune, but until then I consider it to be little more than idle speculation.

    1. Re:M-Theory is bad science by fyngyrz · · Score: 4, Funny

      M-Theory was the brain child of a bunch of mathematicians

      M-Theory was the brane child of a bunch of mathematicians

      [tips hat]

      --
      I've fallen off your lawn, and I can't get up.
    2. Re:M-Theory is bad science by BootNinja · · Score: 1

      you are misusing the concept of Ockham's Razor. Ockham's Razor states that the simplest solution that fits the facts is usually the correct one. Until we have a simpler solution that answers the question as well as or better than M Theory, Ockham's Razor does not automatically discount it.

    3. Re:M-Theory is bad science by KDR_11k · · Score: 1

      Ooooh, I have another theory that would introduce a whole host of new entities: God did it!

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    4. Re:M-Theory is bad science by uhlume · · Score: 1

      Impressive. How does one manage to butcher the spelling of Occam's surname so throughly in one's post while still managing to somehow link to the correct (and correctly-spelled) article in Wikipedia?

      --
      SIERRA TANGO FOXTROT UNIFORM
    5. Re:M-Theory is bad science by Cafe+Alpha · · Score: 1

      So far, M-Theory is not really a Theory, but rather an untested hypothesis. Once the evidence rolls in I will change my tune, but until then I consider it to be little more than idle speculation.

      And Cosmology is all untested hypothesis - it's not a science, though it plays one on TV.
    6. Re:M-Theory is bad science by RichardX · · Score: 1

      Errr... if you cared to actually follow that link you were mocking the parent for posting, you'd have read this in the very first line:

      "Occam's razor (sometimes spelled Ockham's razor) is a principle attributed to the 14th-century English logician and Franciscan friar William of Ockham."

      --
      Curiosity was framed. Ignorance killed the cat.
    7. Re:M-Theory is bad science by uhlume · · Score: 1

      I stand humbly corrected.

      --
      SIERRA TANGO FOXTROT UNIFORM
    8. Re:M-Theory is bad science by ioshhdflwuegfh · · Score: 1

      Errr... if you cared to actually follow that link you were mocking the parent for posting, you'd have read this in the very first line:

      "Occam's razor (sometimes spelled Ockham's razor) is a principle attributed to the 14th-century English logician and Franciscan friar William of Ockham." Which spelling would be the better one according to the Occam (Ockham)'s razor?
    9. Re:M-Theory is bad science by RichardX · · Score: 1

      "Occam", I'd presume as all other things being equal (they're both correct), that's the simpler one to spell/type :)

      --
      Curiosity was framed. Ignorance killed the cat.
  63. Nothing but quaternions by sweetser · · Score: 2, Informative

    Silly Spaniards playing bogus number games. Quaternions are numbers, like the reals, but with 4 parts, a scalar one for time, and a 3-vector for 3D space. A scalar ain't never gonna be a vector. Ever. There is no finger pointing for scalars. This is why there is no arrow for time, never will be, but there is an arrow for spacetime, due to the space part of spacetime. If you look up "Standard Model" on YouTube, not arXiv, you can see they symmetries of EM, the weak force, the strong force, and gravity, U(1), SU(2), SU(3), and Diff(M) respectively. Those 4 symmetries are involved in the norm of two quaternions, where q* q' = 1. Play with the quaternion 4D wave equation, and you get competition for GR.

    doug
    barking up a real 4D tree by himself
    instead of making dumb 11D claims

    --
    Working on new views of old physics at http://VisualPhysics.org
  64. WTF?! by Maliron · · Score: 1

    Ok, so basically, if this makes no sense to you at all (I don't even know if some of those 'words' in the article exist, WTH is a braneworld!) then you must have already flipped your shit right?

  65. What about LQG?? by Anonymous Coward · · Score: 0

    When any of these theories actually provide any real world benefits or assist in some tracable and tangable way in the same then please feel free to wake me up. BTW incidental contributions to the field of mathmatics *does not count*

  66. Hoax? by skintigh2 · · Score: 1

    Just from the blurb quoted, it sounds like this paper was randomly generated from a list of buzzwords. Did someone write the astrophysics version of the Rooter paper?

    http://www.theregister.co.uk/2005/04/15/hoax_paper_accepted/

  67. End of Eva by Anonymous Coward · · Score: 0

    Ever seen End of Evangelion?

    Sounds about right.

  68. LEFT POST! by Harmonious+Botch · · Score: 0, Offtopic

    Ummm...what happened? This was a first post when I wrote it.

  69. Finally! by Burdell · · Score: 1

    I'll be able to get my genuine Klein Bottle!

  70. Hmm... you know, ... by prat393 · · Score: 1

    This would be a perfect place to recruit for any Discordian sect you may be Episkopos of.

  71. This is what happens when you dial 9 chevrons on a by Joe+The+Dragon · · Score: 1

    This is what happens when you dial 9 chevrons on stargate.

  72. All about US dollar by Anonymous Coward · · Score: 0

    As we all know, "time is money". And, with the dollar fall, the time is very likely to shrink and become insignificant.

  73. Ignorant Mods by A+nonymous+Coward · · Score: 1

    MOD this one up as funny if you understand the joke, OTHERWISE LEAVE IT FRICKIN' ALONE.

    1. Re:Ignorant Mods by LindaMack · · Score: 0

      I'm wondering if some of the moderators here have serious psychological issues. Another poster who got the reference was modded offtopic...

    2. Re:Ignorant Mods by Jake+Dodgie · · Score: 1

      OK I'll bite, what's the joke?

      --
      Drunkeness is an electron free version of virtual reality.
    3. Re:Ignorant Mods by LindaMack · · Score: 0

      I didn't know this beforehand, but simply googling for "Time and Relative Dimensions in Space Face of Boe Cap'n Jack" yields enought right away to tell me it's a Dr. Who thing.

    4. Re:Ignorant Mods by Great+Beyond · · Score: 1

      OK I'll bite, what's the joke?

      Time Dimension To Become Space-like = Time And Relative Dimensions In Space = TARDIS

      Christ, I never thought I'd have to explain a Doctor Who joke on Slashdot. And you people call yourselves nerds.

  74. Surprise! Nothing Can Move in Spacetime by MOBE2001 · · Score: 0, Troll

    an insane amount of genius

    Funny but does it require genius to understand that nothing can move in spacetime, by definition? It's just simple logic, IMO. This is the reason that Sir Karl Popper called spacetime, Einstein's block universe in which nothing happens. Don't take my word for it, look it up! Apparently, our brilliant Spanish astrophysicists don't understand simple logic. Otherwise, they would have figured out that a time dimension is nonsense to start with. The universe is 4-dimensional and it is already spatial. A time dimension is crackpottery.

    Read Nasty Little Truth About Spacetime Physics and get the facts.

    1. Re:Surprise! Nothing Can Move in Spacetime by Anonymous Coward · · Score: 0

      Time is a different dimension. Its metric element differs from the other three elements by a factor of "i" (the imaginary constant). Time becoming spacelike is when that element is multiplied/divided by "i" (depending on your choice of metric), and we can show that this happens, for instance, near a black hole (actually, time becomes spacelike and space becomes timelike on this case, so they just "flip").

    2. Re:Surprise! Nothing Can Move in Spacetime by MOBE2001 · · Score: 0, Troll

      Time is a different dimension. Its metric element differs from the other three elements by a factor of "i" (the imaginary constant).

      Kind of like imaginary angels dancing on the head of a pin, eh? Right.

  75. It all makes sense now by Anonymous Coward · · Score: 0

    The 3rd dimension is what killed off the dinosaurs and now the 4th is going to be our demise!

  76. ow ow my brane hurts! by Anonymous Coward · · Score: 4, Funny

    ..maybe if I wait a few feet it'll feel better

    1. Re:ow ow my brane hurts! by ross.w · · Score: 1

      I guess that's what's known as Gumby astrophysics.

      --
      If my call is important, why am I talking to a recording?
  77. Consequences by xPsi · · Score: 3, Insightful

    Ok, as others have pointed out, this "paper" is not peer reviewed. I want to make it clear that I don't personally feel slashdot is the place to debate random physics papers on the arXiv. But, being slashdot, I will ignore my own pleas for sanity. What would be the physical consequences of time suddenly becoming space-like? First, on most mesoscopic scales in our everyday life, time already appears like a spatial dimension. Newton certainly thought so and our (incorrect) intuition tells us this is the case. The degree to which special and general relativity play a role in your everyday life is a measure of how "time-like" time feels. Probably not much. Nevertheless, if time suddenly physically became space-like, physicists all over the world would know it right away. All the weird stuff in relativity like time dilation and space contraction and so on, comes from time having an opposite metric sign as space. These effects all go away if time is space-like. For example, in a typical advanced undergraduate physics lab, you might measure the lifetime of a muon that is sitting in the lab as opposed to one that is crashing down from the sky. The one coming from above (at a large fraction the speed of light) lives longer in the frame of the ground because of time dilation. Easily verified in an afternoon. But I guess no more (at least after next Thursday or whenever this is supposed to happen). Similarly, all the special relativity equations required to perform basic momentum, energy, and lifetime calculations at colliders like Fermilab, CERN, and Brookhaven would suddenly stop working. That would be a big deal and it wouldn't be a subtle thing. IMHO, it makes for great science fiction, but I'm not sure where these guys are going with it.

    --
    i\hbar\dot{\psi}=\hat{H}\psi
    1. Re:Consequences by mux2000 · · Score: 1

      Does that mean that C will cease to be constant (i.e. speed will be simply cumulative without the need Lorentz transforms)? How will that impact the energy of photons such as hitting the Earth from the Sun? What about the effect on quantum mechanics? On orbital trajectories? On electrical equipment? I don't think life as we know it will be possible in a Euclidean (as opposed to a relativistic) universe. Maybe time won't stand still, as others posters suggested, but I can't believe everything would just continue like nothing happened, with only sophisticated physics experiments being able to tell the difference.

      Same disclaimer as parent applies, this is probably a BS paper.

    2. Re:Consequences by Anonymous Coward · · Score: 0

      Nevertheless, if time suddenly physically became space-like, physicists all over the world would know it right away.

      No they wouldn't, because they'd no longer be alive. For that matter, it's unlikely that the world would exist in any meaningful sense either. Flipping the signature of the space-time metric is a huge change. For a greatly simplified example: light follows null geodesics. In a completely space-like metric, there are no null geodesics. Light, and all associated electromagnetic interactions, cannot exist! That's just the beginning. Plenty of other things we take for granted no longer apply.

      If you read a theoretical physicist discussing accelerated expansion leading up to an observational metric singularity (as in the referenced paper), it's actually not too inaccurate to mentally translate that to "every molecule in your body exploding at the speed of light" except that it's not just your body, it's the whole universe.

    3. Re:Consequences by xPsi · · Score: 1

      Nevertheless, if time suddenly physically became space-like, physicists all over the world would know it right away.

      No they wouldn't, because they'd no longer be alive.

      Right. That's a reallly good point, actually.
      --
      i\hbar\dot{\psi}=\hat{H}\psi
    4. Re:Consequences by famebait · · Score: 1

      But, being slashdot, I ...

      Hi, slashdot. Nice to finally meet you.

      --
      sudo ergo sum
    5. Re:Consequences by xPsi · · Score: 1

      Good points. Even if the paper is BS, I think it's still a fun line of inquiry.

      --
      i\hbar\dot{\psi}=\hat{H}\psi
  78. Ya hurt yer what? by jpellino · · Score: 1

    'We show that regular changes of signature on brane-worlds in AdS bulks may account for some types of the recently fashionable sudden singularities. Therefore, the fact that the Universe seems to approach a future sudden singularity at an accelerated rate of expansion might simply be an indication that our braneworld is about to change from Lorentzian to Euclidean signature. Both the brane and the bulk remain fully regular everywhere.'"

    *blink* *blink*

    Ya hurt yer what?

    --
    "Win treats sysadmins better than users. Mac treats users better than sysadmins. Linux treats everyone like sysadmins."
  79. Assumptions by camperdave · · Score: 5, Funny

    Change requires time. It's a logical paradox.

    You're assuming that there is only one time dimension. But actually, from a non-linear, non-subjective viewpoint, it's more like a big ball of wibbly-wobbly, timey-wimey... stuff.

    --
    When our name is on the back of your car, we're behind you all the way!
    1. Re:Assumptions by Anonymous Coward · · Score: 0

      Aw man, where are all my mod points :(

    2. Re:Assumptions by Anonymous Coward · · Score: 0

      yes doctor :)

    3. Re:Assumptions by lgw · · Score: 1

      No, no, Time is a Cube! "Your ignorance of Harmonic Cube is demonic".

      Man, who went and trashed the TimeCube site? Admittedly, the trashed site is hard to distinguish form the original, but c'mon, TimeCube was an internet icon!

      --
      Socialism: a lie told by totalitarians and believed by fools.
    4. Re:Assumptions by flyingsquid · · Score: 5, Funny

      All I know is, my boss has now declared that our fifteen-minute breaks are to be replaced by 15-centimeter breaks. Asshole.

    5. Re:Assumptions by dpiven · · Score: 3, Funny

      Easy. Time is what keeps everything from happening at once, and space is what keeps everything from happening to you.

    6. Re:Assumptions by camperdave · · Score: 1

      my boss has now declared that our fifteen-minute breaks are to be replaced by 15-centimeter breaks.

      Boy are you getting ripped off. 15 minutes is nearly 300 million kilometres long.

      --
      When our name is on the back of your car, we're behind you all the way!
    7. Re:Assumptions by ShieldW0lf · · Score: 1, Interesting

      If the universe isn't infinite, but just gigantic, and there are multiple dimensions, rather than just one, and time branches into multiple dimensions in response to possibilities, one dead cat and one live cat instead of one cat floating in an indeterminate state, then that would imply that the universe is a finite set, time is a path through permutations of that set, and time travel would consist of mapping these permutations to a degree that one is able to follow non-obvious and improbable paths through the set.

      --
      -1 Uncomfortable Truth
    8. Re:Assumptions by SomeoneGotMyNick · · Score: 1

      Thanks for the spoiler warning, NOT!!!!!!

      I just paid a fortune for my book on space/time and you go and spoil the ending for me........

    9. Re:Assumptions by endlessoul · · Score: 1

      Correct me if I'm wrong, but did you just quote The Doctor?

    10. Re:Assumptions by khellendros1984 · · Score: 1

      Oh, do you have the detector as well? Does it go "ding" when there's stuff?

      --
      It is pitch black. You are likely to be eaten by a grue.
    11. Re:Assumptions by pflickner · · Score: 1

      ... while the Face of Bo lives on...

    12. Re:Assumptions by camperdave · · Score: 1

      did you just quote The Doctor?

      Do you mean in the post, or in the sig?

      --
      When our name is on the back of your car, we're behind you all the way!
    13. Re:Assumptions by harrkev · · Score: 1

      You are assuming that the "copenhagen interpretation" is correct. To me, the "branching universe" stuff is a load of bollox (sorry, sci-fi writers). There are other interpretations that do not require an infinite number of infinite universes.

      --
      "-1 Troll" is the apparently the same as "-1 I disagree with you."
    14. Re:Assumptions by genner · · Score: 2, Funny

      I knew you where going to say that......so it begins.

    15. Re:Assumptions by ShieldW0lf · · Score: 1

      I didn't say anything about infinite number of infinite universes. What I put forward was that the universe might be finite, and if the branching universe stuff weren't a load of bollocks, in a finite universe, the number of parallel universes would also be finite, it would imply that there is a set number of possibilities for the universe, a set number of permutations, and we're all moving from one place in the set to the next.

      If something like this were true, a presumption that there is a higher level of existence than the universe within which our "soul" lives would be a necessity to any concept of "traveling" the space-time set, as opposed to simply "being of" the space-time set.

      --
      -1 Uncomfortable Truth
    16. Re:Assumptions by naoursla · · Score: 1

      Your boss is wrong. The distance along the time dimension is measured in light-years. In fact, that is why light seems to take 'time' to travel from one point to another in our 3D space.

      15 minutes is more like 167,654,157 miles.

      Tell your boss to take a hike.

      A very, very long hike.

      (Yesterday is so very far away)

    17. Re:Assumptions by Gilmoure · · Score: 1

      And get the machine that goes Ping!

      --
      I drank what? -- Socrates
    18. Re:Assumptions by 644bd346996 · · Score: 1

      ...then that would imply that the universe is a finite set... Where the hell do you get that? I get the feeling you have no clue what cardinality means (in the context of set theory).
    19. Re:Assumptions by Solra+Bizna · · Score: 1

      Eh, keep it away from my budgies!

      -:sigma.SB

      --
      WARN
      THERE IS ANOTHER SYSTEM
    20. Re:Assumptions by Surt · · Score: 1

      It hasn't been trashed. He updates it all the time. Some versions seem cooler than others, but they're all actually the same when viewed through a 4-dimensional hypercube of time-space.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    21. Re:Assumptions by lgw · · Score: 1

      He's currently complaining about someone vandalizing his site, which like vandalizing goatse.cx makes you wonder at the point.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    22. Re:Assumptions by rolfwind · · Score: 1

      I heard Goatse can achieve it. Quite easily in fact.

    23. Re:Assumptions by Surt · · Score: 1

      Ah, I didn't see that when I looked at the site. It looked like the usual stuff to me.

      --
      "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
    24. Re:Assumptions by ioshhdflwuegfh · · Score: 1

      Ups, I've read your post as
      "All I know is, my boss has now declared that our fifteen-minute breaks are to be replaced by 15-centimeter breaks Asshole."
      but then realized it is
      "All I know is, my boss has now declared that our fifteen-minute breaks are to be replaced by 15-centimeter breaks. Asshole."

    25. Re:Assumptions by Eunuchswear · · Score: 1

      Uh, Copenhagen != Many worlds.

      If you thing many worlds is "bollox"(sic) then you either believe in Copenhagen or some even wierder rubbish.

      Many worlds is the least strange interpretation of QM.

      --
      Watch this Heartland Institute video
    26. Re:Assumptions by comradeeroid · · Score: 1

      It's not the worst part. Remember that you now have to account for the direction of every break. Is it fifteen centimeters up or fifteen centimeters right? And how does that affect the language when you're told that you've got seven centimeters left of your break?

      --
      If you see a rock violating the law of gravity, then the law is wrong, not the rock!
    27. Re:Assumptions by mdwh2 · · Score: 1

      You are assuming that the "copenhagen interpretation" is correct. To me, the "branching universe" stuff is a load of bollox (sorry, sci-fi writers). There are other interpretations that do not require an infinite number of infinite universes.

      The branching Universe stuff in the Many Worlds interpretation - AIUI, the Copenhagen interpretation is something different?

    28. Re:Assumptions by Hoi+Polloi · · Score: 1

      Yah? Well Han Solo made the Kessel Run in less than 12 parsecs.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    29. Re:Assumptions by Hoi+Polloi · · Score: 1

      This is NOT new research. A guy I knew in college many years ago came to this same conclusion while very stoned.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    30. Re:Assumptions by orangesquid · · Score: 1

      The many flawed discussions of a 'many worlds' interpretation are annoying to people who study David Lewis' Multiverse, which has nothing to do with QM but resembles the 'many worlds' interpretation in a few ways...

      --
      --TheOrangeSquid Is it any wonder things seem so awry? We swim in a sea of confusion and don't have to think to survive
  80. question by AlgorithMan · · Score: 1

    when is this going to happen?... I mean WHERE is this going to happen?... I mean... uhm... damnit!

    --
    The MAFIAA is a bunch of mindless jerks who will be the first up against the wall when the revolution comes
  81. Tsk, tsk. by Anonymous Coward · · Score: 0

    > If only Einstein was around to see it :)

    Too linear thinking!

    Maybe he gets to see it... :P

  82. Exactly what we need! by StarfishOne · · Score: 1

    Yet another buzz word to add to the collection. Universe 2.0 anyone? :p

    1. Re:Exactly what we need! by maxwell+demon · · Score: 1

      Yet another buzz word to add to the collection. Universe 2.0 anyone? :p At least there will not be any animated gifs.
      --
      The Tao of math: The numbers you can count are not the real numbers.
    2. Re:Exactly what we need! by jobst · · Score: 1

      Universe 4.0 more likely .... ;-)

      --
      to code or not to code, that is the question.
  83. doxology by anwyn · · Score: 1
    As it was in the beginning

    is now and ever shall be

    world without end.

    1. Re:doxology by Kris_B_04 · · Score: 1

      hmmm..
      wasn't there supposed to be an "Amen" after that?

      *grin*
      Kris

      --
      Remember when Windows were washed, mice were trapped and UNIX guarded the harem?
  84. Time speeding up by Skevin · · Score: 5, Interesting

    When I first heard that the rate of the universe's expansion was actually accelerating, I came up with a weird hypothesis after a few days...

    Time in our frame of reference is slowing down.

    The only way that seemed possible was if we were traveling at speeds close to c, but that didn't sound feasible since we were observing objects that were moving away from us, in all directions. Then another weird thought occurred to me...

    Our observed universe is self-contained within the event horizon of a giant black hole.

    We're closer to the singularity, and accelerating towards it faster than objects closer to the edge of the event horizon. Time will move slower for us, and far away objects will appear to speed up. An outside observer (if such a thing could possibly exist) would perceive our universe as shrinking, but in our current frame of reference, we still think of it as expanding.

    One other observation that lends to this possibility is the fact that we have not seen evidence of other "Big Bangs" or other "Universes". If the Big Bang happened once, shouldn't it be a repeatable occurrence in the limitless void of space?

    Okay, that's my rant. You can slap the straitjacket on me now and ship me off to the funny farm.

    Solomon Chang

    --
    "Twice half-assed makes an ass whole." --Solomon K. Chang
    1. Re:Time speeding up by Anonymous Coward · · Score: 0

      The big-bang didn't happen sometime in the limitless void of space, the big-bang was the creation of the space-time continuum itself.

    2. Re:Time speeding up by ObsessiveMathsFreak · · Score: 5, Funny

      Okay, that's my rant. You can slap the straitjacket on me now and ship me off to the funny farm.
      Or give you a Phd in theoretical physics. It's all good.
      --
      May the Maths Be with you!
    3. Re:Time speeding up by Bloodoflethe · · Score: 1

      It is logical enough that you haven't reached that conclusion independently. Unfortunately, I don't have the credentials to expound further on this subject with any success. But hey, all the p-branes out there have to have their theory (and you can shoot me for the horrible and likely overused-in-theoretical-circles joke).

      --
      "Little is much when little you need."
    4. Re:Time speeding up by phoenixwade · · Score: 2, Funny

      Okay, that's my rant. You can slap the straitjacket on me now and ship me off to the funny farm.
      Or give you a Phd in theoretical physics. It's all good. IS there a difference?
      --
      A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort.
    5. Re:Time speeding up by ObsessiveMathsFreak · · Score: 3, Funny

      IS there a difference?
      It's possible to actually get certified as sane if you're sent to the funny farm.
      --
      May the Maths Be with you!
    6. Re:Time speeding up by dissy · · Score: 5, Informative

      The big-bang didn't happen sometime in the limitless void of space, the big-bang was the creation of the space-time continuum itself. Not according to current brane and bulk theories. In them, time and space existed forever, and still do. The big bang is just a massive release of energy, that reorders the energy and matter within our brane in a way that appears everything is moving away from that 4d point.

      One suggestion was that two branes within the bulk colided, and all that energy that has to go somewhere goes into a big bang in a 4d brane (the bulk is either 10 or lately 11 dinentions while we are just in 4)

      If those theories are correct, both time and space existed before the big bang, and also at some point in the future our brane will collide with another again and cause another big bang. This happens through out all the branes at different times and repeats forever.

      Note that I word my post as if "this is", when it should be pointed out that my wording is this way "if these theories are right", so please take it as such.

    7. Re:Time speeding up by Enrique1218 · · Score: 1

      Dude, don't scare me!!!

      --
      You don't have to be smart to use a Mac, you just have to be smart enough to buy one
    8. Re:Time speeding up by greyhueofdoubt · · Score: 1

      That's interesting. I have to ask, though- How does the almost homogenous background radiation pattern jibe with your theory? It would seem to me that the event horizon of a black hole would be a very anisotropic place to be, e.g, tidal forces.

      Fun to think about.

      -b

      --
      No offense, but I've stopped responding to AC's.
    9. Re:Time speeding up by russ1337 · · Score: 2, Funny

      Our observed universe is self-contained within the event horizon of a giant black hole.
      dude, you just totally changed the way I see the universe. I swear I almost blacked out for a second...
    10. Re:Time speeding up by WilyCoder · · Score: 1

      Basically they are the same thing :)

    11. Re:Time speeding up by klui · · Score: 1

      If we're within the black hole's event horizon, why don't we see/measure the singularity? Is the cosmic background radiation the remains of whatever radiation that came through from beyond event horizon? Will we hit the black hole in 2012?

      I'm definitely no physicist.

    12. Re:Time speeding up by addbo · · Score: 5, Interesting

      Interesting when I took astronomy in University I had the same hypothesis that the Universe itself is a black hole.

      One of the unintuitive properties of a black hole is that as mass increases the average density inside the Schwarschild radius decreases... even though the radius itself increases. Anyways as Mass goes to infinity, Density inside the Schwarschild radius goes to Zero and of course the Radius goes to infinity.

      The radius of the known Universe along with the mass that is hypothesized almost satisfy the Schwarschild radius equation and is only off by a factor of 2 or 3.(Which isn't much in Astronomy)

    13. Re:Time speeding up by blahlemon · · Score: 2, Informative
      --
      It take more faith to believe in evolution than it takes to believe in God
    14. Re:Time speeding up by SolusSD · · Score: 1

      oh i like this.. it fits very nicely with some multiverse thoeries where universes are born as pockets of space near black holes. eventually enough large dense black holes form in the pockets that they create new universes with themselves (kind of like.. baby universes). Where can i subscribe to your newsletter?

    15. Re:Time speeding up by JesseL · · Score: 1

      We are the singularity. Everything within the even horizon of a black hole is part of the singularity. If you're looking around for some enormous lump of superdense matter, don't bother. For a black hole with the volume of our universe, the density could be absurdly low - like as low as the density of observable space.

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
    16. Re:Time speeding up by graveyhead · · Score: 1

      Time in our frame of reference is slowing down.

      Either that, or we're shrinking :o
      --
      std::disclaimer<std::legalese> sig=new std::disclaimer; sig->dump(); delete sig;
    17. Re:Time speeding up by manifoldronin · · Score: 1

      Okay, that's my rant. You can slap the straitjacket on me now and ship me off to the funny farm.
      Will do - once my head stops hurting...
      --
      Tyranny isn't the worst enemy of a democracy. Cynicism is.
    18. Re:Time speeding up by naoursla · · Score: 1

      No, I am pretty sure he means our entire universe is within the event horizon of an much larger black hole. There may be a lot more stuff outside of that event horizon.

      There are some theories that black holes do not destroy information. Instead it is released as Hawking's radition as the black hole eventually evaportates. When the Earth eventually evaportates into the outer-universe there may be a sufficiently advanced intelligence there to capture that information and recreate the interesting bits.

      My new goal is to live an interesting life and have to have my corpse launched towards the edge of the universe.

      Although the outer universe is probably within its own event horizon of an even larger black hole.

    19. Re:Time speeding up by KDR_11k · · Score: 1

      They certified Jack Thompson as sane, I'm sure that certificate is worth as much as a BA in Arts now.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    20. Re:Time speeding up by Anonymous Coward · · Score: 0

      I came up with the same idea 20 years ago, mostly because I was playing with how much energy you would need to travel twice as fast when you were traveling at .9C

      It turns out you require a lot of energy, but you can double your speed all you want (from your point of view), which means the universe behaves as expected from whatever velocity you have.

      Also when you are inside a black hole, you may accelerate all you want to reach the event horizon, but you can never reach it, even if you double your speed every second and the event horizon is only a few centimeters away. In other words, it is just like entering another universe, a huge universe.

      Time slows down to a halt at the event horizon. This means that time must go backwards inside the black hole. So while from the point of view of an external observer we are falling into the center, from our point of view we are accelerating from the center.

      The only way to go back (if we entered this black hole) would be so that when we enter a black hole, that black hole contains the other, see? A contains B contains C. Mathematically possible, we need a way to build it.

    21. Re:Time speeding up by Loki+P · · Score: 1

      If the universe is within a black hole, there's actually no need for the singularity, only an event horizon. If the event horizon accumulates sufficient mass it could become an event horizon from the inside of the sphere too. Space within the sphere would be stretched towards the mass accumulating at the edges of a spherical supermassive shell. This also causes gravitational acceleration towards the outer edges of the universe, but without the need for a singularity in the middle. It also explains the big bang to some degree, as a phase transition from a black hole with a near-singularity at its centre, to a black shell with normal (expanding space) in its middle, and a brand new time axis. Think of the universe as an enormous Easter egg.

    22. Re:Time speeding up by PRMan · · Score: 2, Insightful

      Actually, strangely enough, this exact sort of logic is used by Creationists to explain how starlight could be billions of years old on a 3 day old earth. One theory is that the universe was created out of a white hole, and the earth was in a 4 space dimension 0 time dimension position while billions of years of star formation and travel were happening (by the earth's reference clock).

      http://www.answersingenesis.org/docs/405.asp

      I have the book. It's very interesting. The most interesting thing of all is that the math supports his premise and has gone unchallenged, meaning that it is physically possible that starlight could be billions of years old when the earth was only 3 days old, as long as earth was near the center of the white hole and exited toward the end.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    23. Re:Time speeding up by modmans2ndcoming · · Score: 1

      And God is where in that equation? It seems he has shows a logical and scientifically consistent reason why the premise of a young earth might be physically possible, but how does not leave God as the point of creation?

      Ohh... he made the earth it self seem billions of years old but left the rest of to the universe.... Got it.

    24. Re:Time speeding up by modmans2ndcoming · · Score: 1

      WTF? dude... Hawking radiation is the release of matter from a black hole. No information is retained. That is the key to the entire theory

    25. Re:Time speeding up by naoursla · · Score: 1

      I don't really know what I'm talking about and am just an armchair physicist.

      http://en.wikipedia.org/wiki/Black_hole_information_paradox

      I think science doesn't really know if information is preserved or destroyed from black hole evaporation. I'm sure there are some theories that are more accepted than others at the moment, but I really couldn't comment on that.

    26. Re:Time speeding up by Prius · · Score: 1

      Nice theory. I have my own theory, but it's so good I don't want anybody stealing it. Suffice to say it would make a Theory of Everything impossible and explain things like Dark Matter and Dark Energy.

    27. Re:Time speeding up by BungaDunga · · Score: 1

      "In one sense, if observers on earth at that particular time could have looked out and 'seen' the speed with which light was moving toward them out in space, it would have appeared as if it were traveling many times faster than c." I thought that the speed of light was invariant? Or am I mistaken somewhere?

    28. Re:Time speeding up by Prius · · Score: 1

      Nothing in the universe can destroy information. That is one of the few things I'm sure of in this field. Black holes just take a huge amount of information from over a huge distance and make it very, very, very, very... Eventually I got to the end of it and ended with very small. Anyway, yeah. Black holes can't destroy information. As for the launching your body to the edge of the universe, good luck with that if this brane stuff is right.

    29. Re:Time speeding up by Prof.Phreak · · Score: 1

      I wonder if there's a way to tell which one is which (the expanding or contracting---as you describe) universe? I guess maybe depending on the direction of your motion, things may not be perfectly symmetric (ie: move to/from singularity, vs other directions), while in expanding universe (no singularity) it's all symmetric? Also, about half the galaxies would appear to be moving closer to us (since a singularity, if it's a point, would tend to stretch space way one; length vs width).

      Still an interesting concept.

      --

      "If anything can go wrong, it will." - Murphy

    30. Re:Time speeding up by fractoid · · Score: 1

      Interesting, very interesting! So it's not the edge of the universe that's getting farther away, it's that space is going 'shoop!' into the middle of the universe, and we're shoop-ing faster than stuff further away. Even if it doesn't jibe with the latest observations, it'd make an awesome sci-fi story! :)

      Reminds me of a theory I had that deals with the same phenomenon. I figured, what if there were some quasi-frictional effect, not measurable on any scale we can measure, that over millions of light-years slowly removes energy from photons. That would result in photons from further away being redder, which we then interpret as distant objects moving away from us, and thence to universe expansion.

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    31. Re:Time speeding up by fractoid · · Score: 1

      To horribly mangle a quote from an interesting book I read once ("The Flight of Mavin Manyshaped", Sheri S. Tepper), "If God wants to create the universe, I don't see any reason why he shouldn't use black holes and the laws of physics to do it."

      The original quote was regarding God using deserts and glaciers to clear the smoke out of a chasm, I wish I could find my copy of the book. :/

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    32. Re:Time speeding up by Xylene2301 · · Score: 1

      If the Big Bang happened once, shouldn't it be a repeatable occurrence in the limitless void of space?

      Maybe...but possibly not in our currently observable space. Perhaps other multiverses like ours are being continually created.

    33. Re:Time speeding up by tftp · · Score: 1
      Such forces do exist in the observable Universe, that's why all these dark matter hypotheses exist. The nearest to us example is the V-ger probe that does not currently follow the expected path as it leaves the Solar system.

      But it is definitely weird to read about Heechee and then to discover that we are them...

    34. Re:Time speeding up by artecco · · Score: 1

      I also have come up with a weird hypothesis on this matter... I have had this hypothesis in my head for quite some time (well actually since I read flatland...), and that is that time is in fact the 4th space dimension, but the 4th dimension is our "high" and we therefore cant observe or measure it correctly. If you haven't read flatland the "height" is referring to (for example) a 2D world where the z-axis is not observable per se, as it is static and very narrow, but without it, any 2D creature would not be able to observe each other or the world they live in. By applying this to our 3D+time world, the 4D space dimension would be a 3D world where we are only able to observe a narrow fraction of the 4th dimension at any given time; we therefore labelled it not as a space dimension but "wrongfully" as a time dimension. A 4D creature would observe the ting we perceive as time as a space dimension and would thereby be able to see both our "present" "past" and "future", but we as 3D creatures are only able to observe the small fraction we label as "present" Note: To the 4D creature out there: I'm ready, elevate me.

    35. Re:Time speeding up by ioshhdflwuegfh · · Score: 1

      t would seem to me that the event horizon of a black hole would be a very anisotropic place to be, e.g, tidal forces. Actualy, there are some proofs that event horizon is smooth ("no-hair" theorems or something), even small bumpiness would be unstable against the "evaporation" through gravitational waves.
    36. Re:Time speeding up by Eunuchswear · · Score: 1

      Nothing in the universe can destroy information.
      More or less the exact opposite of the truth - everything in the universe destroys information. That's what time is.
      --
      Watch this Heartland Institute video
    37. Re:Time speeding up by rozz · · Score: 1

      Note: To the 4D creature out there: I'm ready, elevate me. Answer:
      First be a good kid and eat your lunch. Dessert may come later ... or not.
      --
      "There is nothing more frightful than ignorance in action." Johann Wolfgang von Goethe
    38. Re:Time speeding up by Burz · · Score: 1

      Okay, is it speeding up or slowing down? Make up your mind...

      I would think that all the redshifting we see indicates that our local time is speeding up if anything.

    39. Re:Time speeding up by Anonymous Coward · · Score: 0

      I have the same line of thinking :) I.E. the big bangs are a continual process of an ever-imploding universe.

    40. Re:Time speeding up by Nomikos · · Score: 1

      > Think of the universe as an enormous Easter egg.

      One day, an astro-physics professor will start his lecture with that line.

    41. Re:Time speeding up by GTMoogle · · Score: 1

      Presuming that there aren't strange effects, gravity is zero everywhere inside an empty shell, so that couldn't actually have an effect. If more mass fell in one one side, the end result would probably be a shift in the event horizon to the centerpoint of the mass.

    42. Re:Time speeding up by mkuplens · · Score: 1

      Love it!

      My highschool hypothesis was that black holes and the big bang are effectively one giant interconnected probability function, with black holes collecting all matter in the universe and concentrating it in a single singularity which enables the big bang to occur. So you have a single self-sustaining cycle, which is really no more than an incomprehensibly large example of Schrödinger's cat. In a way.

      I'm sure that was all triggered by subconscious angst arising from reading about the slim probabilities that allow for the universe to exist, string theory, worm holes, and all that jazz.

      That said, I like to think that it tidily manages the n-dimensionality, circularity of time, etc. problems.

    43. Re:Time speeding up by rubycodez · · Score: 1

      your chances of getting some tail are better at the funny farm

    44. Re:Time speeding up by Anonymous Coward · · Score: 0

      John Titor, is that you?

    45. Re:Time speeding up by phoenixwade · · Score: 1

      They certified Jack Thompson as sane, I'm sure that certificate is worth as much as a BA in Arts now. Sorry, Can't resist..... that'd be a Bachelor in Science, not a Bachelor in Arts, since we're referencing Jack Thompson....

      --
      A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort.
    46. Re:Time speeding up by wickedsteve · · Score: 1

      So is a shrinking frame of reference indistinguishable from a slowing frame of reference?

    47. Re:Time speeding up by Hoi+Polloi · · Score: 1

      But you are sane and insane at the same time until someone examines you. Schroedinger's Theory of Insanity.

      --
      It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
    48. Re:Time speeding up by catwh0re · · Score: 1

      Maybe we've all been sucked into a black hole. The big bang was when we came out "the other side" and the expansion is just the gravity finally letting up on us. We're all in mama cass' belly.

    49. Re:Time speeding up by StCredZero · · Score: 1

      You wouldn't see "other big bangs happening in space" because the big bang didn't happen at a point in space. It happened to all of space simultaneously. If we were two dimensional creatures, the expansion of our universe would be like being on the surface of a balloon that's being inflated. Other big bangs would be like other balloons inflating. But we couldn't see them if we were 2D, since all of our perceptions are trapped in our own 2D universe.

      (Our big bang could also be a local swelling/bubbling-out on a much larger balloon. But you still wouldn't see these happening in space as some kind of explosion.)

    50. Re:Time speeding up by Anonymous Coward · · Score: 0

      Outside of the article also mentioning black holes, the OP and the article you referenced don't look to be talking about the same things. Did the two actually appear the same to you or was that just your attempt at making like this guy didn't have an interesting original idea? I hope it's the first, the latter is just jealousy.

    51. Re:Time speeding up by netcmd · · Score: 1

      Good observation. Check this out -- our big bang is actually the result of a black-hole sucking all that material down to a singularity then it reaching singularity and exploding (hence big bang). This process is repeatable and will continue to happen. I figure the universe is still expanding because the power behind this bang still overcomes the gravity pulling things back together. Not sure about the event-horizon idea (maybe I just don't understand properly).

      All that dark matter out there we can't "see"? That's other universes where the laws of physics are a bit different and radiation doesn't reflect back to us as light.

    52. Re:Time speeding up by Dutch_Cap · · Score: 1

      Actually, sanity is merely a special case of insanity.

    53. Re:Time speeding up by SheaZubair · · Score: 1

      I actually thought this up about a few months ago and discussed it over lunch with my friend. Good to know that I am not the only nutcase to think so, especially at a time like this when having a geocentric Universe is shunned upon (but hey, multiverses taking a peek at us sounds just as nutty, no?) -Shea Zubair

    54. Re:Time speeding up by oddityfds · · Score: 1

      That reminds me of this one...

      "Reciprocal Cosmology": http://www.reciprocality.org/Reciprocality/r3/index.html

  85. If only this has brought us one thing... by Anonymous Coward · · Score: 0

    It's the pinnacle of horrendous narrative ever spewed:

    "Conscience was thus forever frozen in time, like a savegame in Diablo is"

    Ack!

  86. MOD PARENT UP! by fmobus · · Score: 1

    this is the best explanation on this matter I've seen so far. Bravo!

    1. Re:MOD PARENT UP! by EricWright · · Score: 1

      It's great that some mods have listened to you. It's pretty sad that they moderated it Funny, considering he's pretty spot-on with the explanation. It brought back some fond memories of my senior year special relativity class.

    2. Re:MOD PARENT UP! by B4D+BE4T · · Score: 1

      I agree. This is one of those rare posts that deserves more than a +5. Great explanation! Thanks!

  87. Re: Fermi Paradox Answers by Anonymous Coward · · Score: 1, Insightful

    You forgot a few:

    CONSPIRACY: We HAVE made contact. Now that you know, I have to kill you.

    PHASE SHIFT: We're looking for signals in radio waves, but due to relativistic differences in velocity between us and other intelligent civilizations, their broadcasts are arriving in deep infrared.

    ACTIVE JAMMING: They don't want us to look, and they've developed sufficient FTL technology to get between their early signals and us.

    EARLY TO THE PARTY: Somebody had to be first...

    GAH LAK TUS: 'Nuff said, true believer.

  88. Total protonic reversal by amliebsch · · Score: 1

    The flow of entropy will reverse or break its link to the time dimension? This would not necessarily be so "bad" but it would completely break down most of the laws of physics that depend on this phenomenon, thus destroying the universe, no? Oh, it would be bad. In case you're fuzzy on the whole "good/bad" thing, try to imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light. That would be bad.

    --
    If you don't know where you are going, you will wind up somewhere else.
    1. Re:Total protonic reversal by SomeoneGotMyNick · · Score: 1

      Yeah, like the feeling you get when a member of the faculty catches you without a hall pass.

    2. Re:Total protonic reversal by SwordsmanLuke · · Score: 1

      imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light. That would be bad. But, luckily, not for very long. 8^)
      --
      Any plan which depends on a fundamental change in human behavior is doomed from the start.
  89. Well, I for one welcomed our five dimentional by crovira · · Score: 5, Funny

    overlords.

    Breaking "time's arrow" will really fuck with our verb tenses.

    But I worried about that tomorrow...

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
    1. Re:Well, I for one welcomed our five dimentional by sconeu · · Score: 1


      Breaking "time's arrow" will really fuck with our verb tenses.


      Well, then, thank goodness for Dr. Dan Streetmentioner.

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
  90. Great, now I have no idea what to do by Serhei · · Score: 1
    The paper wasn't peer reviewed, so your mileage may vary.

    i.e. the universe will screw itself over only from the point of view of some people, but not others?

    That should be interesting. I don't know why that would happen just because a paper didn't get peer-reviewed, though. And we'll never known what would happen to the universe if the paper did get peer-reviewed before release..

  91. Comment from Dr. Hobo by Anonymous Coward · · Score: 0

    So... Time is going to be space?

    Guess that means that the End is Near.

  92. Zombie paradise by maroberts · · Score: 1

    Branes! More branes!

    --

    Donte Alistair Anderson Roberts - hi son!
    Karma: Chameleon

  93. Better start practicing: by mindwanderer · · Score: 1
    --
    :wq
  94. Y 2 K been berry good to me.. by bdwoolman · · Score: 2, Funny
    I called it Y 2 K Y Jelly.

    And more on topic, Can I say that the arrow of time is an illusion?

    Be here now.

    --
    "No fear. No envy. No meanness." Liam Clancy
    1. Re:Y 2 K been berry good to me.. by blahlemon · · Score: 2, Funny

      The arrow of lunch time, doubly so.

      --
      It take more faith to believe in evolution than it takes to believe in God
    2. Re:Y 2 K been berry good to me.. by fractoid · · Score: 1

      Three pints? At lunchtime?

      *looks at watch* Oh, look at the time, it's nearly lunchtime! wheeeeeeeeeeeeeeeeeeeeeeeeeee!

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
  95. There's a theory... by ale_ryu · · Score: 1

    which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarrely inexplicable.
    There is another theory which states that this has already happened.


    Oh no, not again...
  96. Don't Hold Your Breath (Re:Mayan Calender) by darkonc · · Score: 1

    So that's whats going to happen when the Mayan calender rolls over in 2012. We're talking Geological time here. The universe doesn't turn over until the 64th long count which, by my calculations, would be 324950.

    In Cosmological time, that's as close as we'll get to 'in the blink of an eye'.

    --
    Sometimes boldness is in fashion. Sometimes only the brave will be bold.
  97. The question by dreadknought · · Score: 1

    Somebody is about to find the question to life, the universe, and everything!

    --
    What you reap is what you sow
  98. Merde alors! by crovira · · Score: 1

    This really put "oomph!" into the phrase:

        "Apres Moi Le Déluge..." -Louis the 16th...

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  99. Brane by wylderide · · Score: 1

    Brane and brane -- What is brane ?

    --
    This is the best restaurant I ever eat in
  100. Branes? by kindbud · · Score: 1

    What, no zombie jokes yet? They've already eaten your branes?

    --
    Edith Keeler Must Die
  101. Its just a few thoretical physicists by crovira · · Score: 1

    flipping us the bird?

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  102. Not to mention the junk reporting. by Anonymous Coward · · Score: 1, Insightful
    FTFA:

    It don't . . . they got . . . this ain't . . . yep . . . ain't got . . . we're all starin' down the barrel . . .

    Nuthin' detracts from scientific journalism more 'n talkin' like a fsckin' hillbilly.

  103. Uh that wasn't the Mamas & the Papas by crovira · · Score: 1

    By an odd coincidence, it was the Fifth Dimension.

    --
    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  104. Am I understanding this correctly? by DontLickJesus · · Score: 1

    Though I'm not great with the advanced formulas in this paper, I'd like to understand if I'm coming to the right conclusions based on the assumptions in this paper. It seems to suggest that the acceleration the universe is experiencing and "dark matter" are actually a product of the gravity created by the mass in the rest of time. Also, that we are in a 5-dimensional universe, the 4th being time, and the 5th I cannot discern.

    Also, if the 5th dimension is a time dimension, and our natural ability to sense time is based on the energy in our brains moving/experiencing the changes, when the 4th dimension flips would not now said energy continue to flow across a much larger brain and continue to experience, but all time said creature was assembled?

    --
    Where genius and insanity become confused true wisdom is found
  105. and ? by unity100 · · Score: 1

    so 5th dimension their song ? just what ? i dont get it.

    1. Re:and ? by dwye · · Score: 1

      The 5th Dimension was a music group from the early 1970s, and did one of the most played versions of the Aquarius theme from Hair. Other groups covered it (no joke on Hair's famous nude chorus scene), but I don't remember which ones. One can assume Sonny and Cher, at least on one of their TV shows.

    2. Re:and ? by unity100 · · Score: 1

      aight so was 5th dimension mama and papa's song, and age of aquarius was the cover of 5th dimension. message is the same.

  106. i know i know by unity100 · · Score: 1

    probably in a few years they'll say that one more dimension will flip out. that'll make 5.

  107. Time Cube by HTH+NE1 · · Score: 1

    I wonder what this will mean for the Time Cube guy.

    Time Cube: It's the Goatse for Logical Thought

    --
    Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    1. Re:Time Cube by maxwell+demon · · Score: 1

      I wonder what this will mean for the Time Cube guy.

      The time cube will be converted into a hypercube.
      --
      The Tao of math: The numbers you can count are not the real numbers.
  108. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  109. Re: Fermi Paradox Answers by maxwell+demon · · Score: 1

    Another possibility: We get their signals all the time, but the signals consist of highly compressed data spread over a wide frequency range, so we can't distinguish them from pure noise.

    --
    The Tao of math: The numbers you can count are not the real numbers.
  110. Dont worry by mdemonic · · Score: 1

    You could always walk back to the past if you like the old universe better

  111. Thank you, Doctor by Prototerm · · Score: 5, Funny

    Don't blink, don't turn away, don't close your eyes, and whatever you do, don't blink!

    (for those of you who didn't recognize the Doctor Who quote in the parent, turn in your geek badge!)

    --
    "My country, right or wrong; if right, to be kept right; and if wrong, to be set right." --Senator Carl Schurz (1872)
    1. Re:Thank you, Doctor by ross.w · · Score: 1

      best. Doctor. Who. Story. ever!

      --
      If my call is important, why am I talking to a recording?
    2. Re:Thank you, Doctor by Nazlfrag · · Score: 1

      It's a tie between that and the clockwork frenchie one - Girl in the Fireplace. Stephen Moffat should write them all I say.

    3. Re:Thank you, Doctor by FlyingSquidStudios · · Score: 1

      Sorry, no. The best episode is still City of Death and probably always will be.

      *grumble grumble stupid kids not knowing their roots grumble grumble*

    4. Re:Thank you, Doctor by Anonymous Coward · · Score: 0

      turn in your geek badge! I would, but it did sort of get away from me, didn't it.
    5. Re:Thank you, Doctor by Nazlfrag · · Score: 1

      City of Death was awesome, I'm personally partial to the Aldric era myself but if we must include the classics, the Tom Baker + Romana combo was unbeatable. Still, the classics are just that, relics of a bygone era. IIRC Douglas Adams himself had a hand in that script. Of the current generation of authours , Stephen Moffat is supreme overlord.

  112. I've got my measuing tape by fornulf · · Score: 1

    So, how long do we have?

  113. Don't open it! by snowwrestler · · Score: 1

    It would be really scary if the waveform collapsed into the "zombie Einstein" state.

    --
    Build a man a fire, he's warm for one night. Set him on fire, and he's warm for the rest of his life.
  114. It's a long way out! by Anonymous Coward · · Score: 0

    I don't think we have to worry about time folding into another spacial dimension.

    What will happen sooner, and what we should be worrying about, is a time when electromagnetism breaks down into two distinct forces and all "normal" matter breaking down. This event would finally allow "dark" matter to ascend into intelligent life forms within this universe. Too bad, that 'time' will eventually catch up to those arrogant "darkies" and squash their tiny butts flat as a pancake!

  115. Wow the gibberish is strong in him... by bteeter · · Score: 1

    I tried to read the submitters summary, but I just couldn't. It was like he took a bunch of scientific sounding words and put them together randomly. Almost like what a preschooler would do with those little word magnets.

    Do the editors try to read these things before posting?

  116. Quack alert! by Fujisawa+Sensei · · Score: 2, Funny

    You still haven't produced the code for COSA, its been more than a month. Do you have it?

    A time dimension is crackpottery.

    I suggest you read Relativity by Albert Einstein. He explains Special Relativity in simple mathematics that even somebody who has taken Algebra in US public school system can understand.

    Read Nasty Little Truth About Spacetime Physics and get the facts.

    I will refer you to the following questionnaire: Are you a quack?

    --
    If someone is passing you on the right, you are an asshole for driving in the wrong lane.
    1. Re:Quack alert! by MOBE2001 · · Score: 0, Troll

      You still haven't produced the code for COSA, its been more than a month. Do you have it?

      You still haven't stopped kissing ass?

      Albert Einstein

      Oh, the physics god, eh? Sorry, I don't worship time-travel-believing crackpots. ahahaha...

      Are you a quack?

      It's better to be a quack than an ass kisser, any day. ahahaha... AHAHAHA... ahahaha...

    2. Re:Quack alert! by Fujisawa+Sensei · · Score: 1

      You still haven't produced the code for COSA, its been more than a month. Do you have it?
      You still haven't stopped kissing ass?

      That wasn't the answer to the question, where is the code to COSA, or is more BS?

      Oh, the physics god, eh? Sorry, I don't worship time-travel-believing crackpots. ahahaha...

      The I assume you will be showing some experimental evidence that refutes SR? Also see answer to questions #1,5,7,10,11,12,17, and probably some others. Just like the code to COSA? see answer to question #8 (especially regarding artificial intelligence and the bible.)

      Are you a quack?
      It's better to be a quack than an ass kisser, any day. ahahaha... AHAHAHA... ahahaha...

      Whose ass am I kissing? I have nothing to gain here except the pleasure in debunking a quack. Also see answer to #26

      So to sum things up: You have no verifiable evidence to backup your "Nasty Little Truth About Spacetime Physics". And you don't have any code to backup your COSA vaporware. If you want to put me in my place all you have to do is come up with an answer these 2 little items. Simple?

      --
      If someone is passing you on the right, you are an asshole for driving in the wrong lane.
    3. Re:Quack alert! by Anonymous Coward · · Score: 0

      I will refer you to the following questionnaire: Are you a quack? Hmmm ... that's actually a really disturbing page. Most of those flippant answers are non sequiturs, which makes me really hope that you're not the author of it.

  117. Maybe not the whole universe by psbrogna · · Score: 1

    I think I heard that parts of Indiana were considering not participating in this shift.

  118. One of the shortest SF stories ever told by eno7 · · Score: 0

    Time ended. Yesterday.

  119. Am I oversimplifying this? by ProppaT · · Score: 1

    Physics isn't my high point, and think I must be oversimplifying this or at least missing the point, but wouldn't this be fairly straightforward physics thinking?

    Doesn't this kind of go hand in hand with the big bang to begin with? You start with matter without a time dimension, then it explodes and "gains" this time dimension. Then, inevitably, it collapses upon itself and loses that "time dimension" once again. The second that matter gains time as a property, the clock automatically starts counting down to the point where it looses it. Much like, if you want to look at life in a morbid fashion, the second you are born you are on your journey to the grave.

    As I said, I'm no expert in this so if there's more than meets the eye here, feel free to expand my horizons (no pun intented).

    --
    Wise men say, "Forgiveness is divine, but never pay full price for late pizza."
    1. Re:Am I oversimplifying this? by DontLickJesus · · Score: 1

      You're thinking is sound, but what differs here is that they're not describing a collapse so much as a change in the dimension. Assuming that a universe expands out increasing in the number of dimensions similar to a bubble expanding in space, those dimesions are lost in a collapse. This flip's effect could be oversimply personified like having the pyramids show up next to the statue of liberty on Mars, an object could appear beside itself in 3-deminsional space, and the entiretly of a single atom's travels/existance would be visible at one instant.

      Ever seen the worms that live in that net in the tree in your back yard? Imagine the universe suddenly becoming that.

      --
      Where genius and insanity become confused true wisdom is found
  120. Cannot define space even by unixfan · · Score: 1

    The funny part is that they cannot even define space. For these "theorists" there is the liability of spinning in more and more, and come up with crazier and crazier ideas...

    I heard a story about one of these guys being on a ship and being asked to plot their course out of the harbor, which begins with locating where they are. A couple of hours later, when already out to sea, he had completed these fantastic formulas, which incidentally placed them squarely on shore.

    Of course all that was needed was to go top ship and make a couple of sightings and within minutes locate their position on the map. Too much trying to figure out rather then just observing.

    1. Re:Cannot define space even by Gilmoure · · Score: 1

      Smart people is teh dumb!

      --
      I drank what? -- Socrates
  121. Update by ozbird · · Score: 1

    Update: 10/09 16:06 GMT by Z : A few readers have written in to point out that the article is not peer-reviewed; your mileage may vary.

    A few readers have written in to point out that the article is unintelligible; your mileage may vary.

  122. Obligatory... by tomcode · · Score: 1

    Time is an illusion, lunchtime doubly so.

    We'll all need to brush up on our time travel hyper-grammar. Or we will-wollen will.

    This means we really will be able to make the Kessel Run in 12 parsecs!

    --
    f u cn rd ths u cn gt a gd jb n cmptr prgmng
  123. Schizophrenia by xA40D · · Score: 1

    What's this going to do to the place where your mind lives? I only ask because in my universe this flip has already happened. Reality is broken, causality works in both directions, events in the past cause things in the future as before, but now I can see events in the future causing things in the past. I hear voices which come to me through the eternal now; and when I go looking I can see additional messages encoded within "fictional media". Simply trying to overcome the memetic virus embeded in my consciousness by my upbringing (you'd probably know it as Judeo-Christian religion) had me throwing myself of a bridge convinced I was the reincarnation of Judas. And when I discovered 'the beast' I found myself able to shapeshift, percieve the future, bend space and time, and unlock the secrets of the unconscious.

    And if you think I've merely been watching Heroes and gotten confused, this all kicked off months before that show started, but somehow I've gotten entangled with it. The oddest thing in that regard has to be the conversation I had with the voice of Malcom McDowell then having him crop up as Mr Linderman several days later.

    I do have an explination, but you're not going to like it.

    Personally I simply wish I could fix my teeth so I could come to terms with all this without the distraction.

    --
    Do you mind, your karma has just run over my dogma.
    1. Re:Schizophrenia by Anonymous Coward · · Score: 0

      You are not alone in this. Glad to know that neither am I.

  124. Re:Mod Parent Down... by Anonymous Coward · · Score: 0

    Ceci n'est pas une post.

  125. When I was a toddler... by kopo · · Score: 1

    When I was three or four years old, my parents were teaching me to tell time. At one point, they asked me which was longer, a half-hour or an hour. I said, "a half-hour." They asked me "By how much?" and I replied "8 millimeters."

    How right I was.

  126. Re:Are there any /. editors with physics degrees? by khallow · · Score: 1

    Unfortunately, while the ArXiv is where important results are first published by working physicists, it's also a place where an increasing amount of junk papers are posted. For those who are interested, this is an example of just such a junk paper as it amounts to nothing more than a fancy way to produce a (parameterized) Wick rotation in a braneworld model.

    I think it's a bit more than that. They glue two models together. The Wick rotation in question occurs over the boundary between these two pieces, assuming I understand this correctly. Then they come up with a consistent quantization accross the boundary.

    Of course, let's not even mention the fact that they're proposing that braneworlds and AdS are reasonable approaches to physics...

    Well, we're still looking for the stepping stone to the next level. It's quite possible that a braneworld theory could provide a useful description once we understand better what's going on both with the physics and with the mathematics. I personally am hoping there will be multiple overlapping theories to chose from.

  127. 3+1 universe... not yours by Anonymous Coward · · Score: 0

    Time is not a dimension. Get a brane morans.

  128. Time, what is time? by WurdBendur · · Score: 1

    Time what is time
    I wish I knew how
    to tell You why
    It hurts to know
    Aren't we machines
    Time what is time
    Unlock the door
    And see the truth
    Then time is time again

    --
    SCISNE? ANUS SIMIAE!
  129. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  130. Anyone remember this movie? by teleny · · Score: 1

    Wasn't there a song in the movie "Steppenwolf" about time turning into space?

    --
    teleny, friend of cats.
  131. Has it happened before? by greyhueofdoubt · · Score: 1

    Has this happened before? And if it has, would there be any way to detect that it had happened? It seems strange for something to only happen ONCE in the life of the universe so far, and for it to happen right around the time that we exist...

    -b

    --
    No offense, but I've stopped responding to AC's.
  132. Some odd items. . . by Fantastic+Lad · · Score: 1
    I've been fascinated for some years by claims which stem from all over esoteric thinking that there is some sort of 'shift' on the horizon.

    This shift is described and predicted by every group imaginable. Shamans in the West, Energy Masters in the East, and every brand of channeler, seer, crystal ball hockum reiki flakey and voodoo witch spotted throughout the rest of the world. --While much of this comes in the form of garbled nonsense, (disinformation arrives in lively spurts from the etheric realms as well as the physical), this common theme of a physical paradigm shift remains universal.

    So I wonder what is going on with this story. --Is it a "Faked Moon Landing" straw man designed to be ridiculed on the scientific front? Or is it the result of a researchers who are plugged into the esoteric scene and wanted to see how the maths fell? Or is it an honest exploration into physics derived from pure, unaffected interest in the universe.

    I'd be curious to know what they mean by, "the recently fashionable sudden singularities", which they seem to think may be an indication that their findings hold water. In my cursory googling about, I cannot quite determine whether "Sudden Singularities" are a physically observed trend in astrophysics, or a mathematical discovery which is blowing holes in current theoretical models of reality.

    Whatever the case, I'd be interested to see how this theory bounces when peer reviewed.


    -FL

  133. Ass Kisser Alert! by MOBE2001 · · Score: 0, Troll

    Whose ass am I kissing?

    ahahaha... You're just an ass kisser in my book. I know. I meet ass kissers like you all the time. Kissee, kissee... Haysoos Martinez! The time traveling crackpot's been dead for a while, now. Stop kissing his ass. ahahaha...

    PS. Nothing can move in spacetime. You can pack that up your ass. How about that? ahahaha... AHAHAHA... ahahaha...

    1. Re:Ass Kisser Alert! by Anonymous Coward · · Score: 0

      "Ass kisser", I don't think you understand the meaning of that term.

      PS. Nothing can move in spacetime. You can pack that up your ass. How about that? ahahaha... AHAHAHA... ahahaha...

      Talk's cheap, we're still waiting for the evidence.

    2. Re:Ass Kisser Alert! by MOBE2001 · · Score: 0, Troll

      Talk's cheap, we're still waiting for the evidence.

      ahahaha... Bend over, then, jackass. I'll show you plenty of evidence. ahahaha... AHAHAHA... ahahaha...

  134. Brane and Brane, What is Brane? by cohlemann · · Score: 1

    was the first thing that popped into my head.

  135. Yeah...but make it the weekend. by Caduceus1 · · Score: 1

    Uhhh...whut?

    I don't care - I just hope it happens on the weekend so I don't have to go back to work.

    --
    rm /dev/mem
    Sci-Fi Storm
  136. Some concerns by steveoc · · Score: 1

    The article makes perfect sense to me, but it does leave me with 2 major concerns :

    1) How is this likely to affect my ebay activities ? If that item that I really NEED ends in 1 minute and 43 seconds at the time of the flipover, then will I be perpetually stuck in a 4D world without my precious item, or will I exist in a state where that same precious item is mine only in some ethereal quantum form ? (ie - its there, but not quite there at the same time)

    2) As a programmer, I only really care about the data and code itself, but the customers driving the development seem to be obsessed with such abstract concepts as timesheets and deadlines. Will the flip to a 4D space only existence eliminate timesheets, deadlines and other such nonsense altogether ? If so, I could probably accept the loss of my precious ebay items that Ive almost won.

  137. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  138. Sorry for the obvious question... by Jozer99 · · Score: 1

    Sorry for the obvious question (at least for some of you physists), but if we don't have a "time" dimension, how will the universe work? I was under the impression that most of physics is based on the fact that all sorts of teeny little things are vibrating and spinning and such, all of which require time (velocity = distance/time, after all). If suddenly we have another spacial dimension, doesn't everything just freeze up?

  139. time does not matter by jobst · · Score: 1

    Tomorrow or the next life, you will never know which comes first. ;-) jobst

    --
    to code or not to code, that is the question.
  140. Unlikely by bxwatso · · Score: 1

    The idea that anything cosmically interesting or unusual has happened in the 100K or so years of modern human existance is extremely unlikely. Equally unlikely is that anything interesting or unusual is about to happen.

  141. bah! by thegnu · · Score: 1

    (for those of you who didn't recognize the Doctor Who quote in the parent, turn in your geek badge!)

    I'm keeping my geek badge, but you can have this fogie badge I lifted off of a dying Netware engineer. :D
    --
    Please stop stalking me, bro.
    1. Re:bah! by Anonymous Coward · · Score: 0

      I'm keeping my geek badge, but you can have this fogie badge I lifted off of a dying Netware engineer.

      I'm afraid you'll have to turn in your geek badge too. The Doctor Who episode quoted in the post was only aired a few months ago (on June 9th, to be specific), so it hardly requires an old fogie to recognize it. Of course, thinking that you needed to be an old fogie implies that you are unaware of the *NEW* Doctor Who series. Any true geek would be aware of this delightful fact (what with the current doctor arguably being the best), which means that you are not a geek.

      Your badge please...

    2. Re:bah! by thegnu · · Score: 1

      Your badge please...

      I'm implying that you'd have to be a fogie to believe that watching the new Dr. Who episodes was necessary to geekdom. As wonderful as Dr. Who is, I don't think that just because I'm a geek, I should watch every episode of a remake of an old television show.

      You can pry my geek badge from my cold dead fingers, just like I got my fogie badge. :)
      --
      Please stop stalking me, bro.
  142. Re: Time dimension becomes space-like ... by Anonymous Coward · · Score: 0

    So, in the future, "when questions" will become "where questions".

    It's sorta like marriage in reverse, then. In the early years, it's a question of where. Shortly afterwards, it always a question of when. Always, "when?"

    If the theory stands up to testing, maybe even becomes a reality, I can say with total certainty that we're going to be royally f*cked.

  143. You think you've got it bad? by Anonymous Coward · · Score: 0

    My boss has now declared that our fifteen-minute breaks are to be replaced by 15-centimeter assholes!

  144. Heat - The Fourth Dimension by johnrpenner · · Score: 1


    The physicist Crookes concluded the temperature changes
    had essentially to do with a kind of fourth dimension in space...

  145. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  146. Coincidence? You be the judge. by Nazlfrag · · Score: 1

    Leaving aside all of the apocalyptic musings, there may be a significance to the date. It appears that the date (December 21, 2012) coincides with a conjunction of the Winter solstice sun and the crossing point of the galactic equator and the ecliptic. This occurs every 13,000 years (of the longer 26,000 year long 'Platonic Year').

    So, it may be a mile marker, but it isn't the end of the universe. It just happened to be when the Mayans decided to 'turn over' their long count calendar back to 0.

    I will not vouch for the accuracy of this information or of the sites below. I have glanced at them and it makes sense on the surface (leaving out all of the mumbo jumbo).

    THE MAYAN CALENDAR END-DATE

    THE HOW AND WHY OF THE MAYAN END DATE IN 2012 A.D.

    James Powell

    Shamelessly stolen from the Snopes forums.

  147. Hawking by TapeCutter · · Score: 1

    "explain how starlight could be billions of years old on a 3 day old earth."

    Ok I will bite - perhaps the stars were already there billions of years before the Earth?

    Also the idea of the visible universe being the inside of a black hole is not new, Hawking's brief history of time mentions it (although I think the idea predates the book). It also says that a black hole of universe sized proportions would not have the huge tidal forces associated with stellar sized black holes, therefore you could cross the event horizon (ie: fall into the hole) without noticing it.

    --
    And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
  148. Re: Fermi Paradox Answers by tftp · · Score: 1

    Long distance communication over radio (or any other light-speed limited carrier) is not useful, and I would be surprised if any star system wants to wait 300 years before they know what's today's price on some ore. It would be of interest to historians, maybe, but not to any customer.

  149. Animation of higher dimensions by bizbuzz · · Score: 1
  150. Re:Time speeding up - no observationally support by ETEQ · · Score: 1

    Actually, inside the event horizon of a black hole, all of that switches around - when you cross the event horizon, time and space switch. More mathematically, if you look at the Schwartzschild Metric (the mathematical description of space near a black hole - http://en.wikipedia.org/wiki/Schwarzschild_metric has the form of it), you'll see that when the radial coordinate r passes from outside to inside the event horizon, the radial and time coordinates switch signs, making paths constant in space outside the event horizon constant in time inside the event horizon (and vice versa). Now this is something like what the article authors are saying is "about to happen" in out universe, but with an unrelated cause (e.g. they aren't claiming anything about falling into black holes or the like)

    Another important thing to bear in mind is that the observed universe is essentially completely isotropic on large scales. This means that we cannot be inside a black hole because then the black hole singularity has to be located somewhere (the r=0 point in the Schwartzschild metric) that isn't here, and this would manifest as a preferred direction in the universe. And there isn't one.

    As for the idea of the Big Bang being a "repeatable occurrence in the limitless void of space," bear in mind that the Big Bang occurred everywhere - again, the universe is isotropic on large enough scales, so saying the Big Bang could happen again, just "somewhere else" is a meaningless statement. Of course, when you start throwing in the brane theories with more than 4 dimensions, things get more complicated (e.g. multiple big bangs can be constrained to branes that are limited along some 5th or 6th or 7th or whatever dimension... but I don't know too terribly much about that side of things)

    It's great to think about these kinds of ideas, but (despite what some present-day particle physicists seem to think) they always need to be tempered with some observational checks about the universe that we actually live in to be anything more than an unusual mathematical oddity.

    As a final note, though, your original idea of time "slowing down" has been investigated by some people - I don't have any references off hand, but there has at times been talk of a time-varying speed of light. The key point is that c is the "constant" that you multiply by time to get dimensions of space - having it vary in time would lead to a more complicated relation between time and spatial coordinates, that may well seem to result an an acceleration. The problem is, this seriously mucks up how light and other EM radiation works, and its very difficult to get the observed universe to be observable at all if you let this happen.

  151. 2009 - kilometer of linux desktop! by dp_wiz · · Score: 0

    It's oficial.

  152. Re:Plagarism! I can only respond ...(cont) by vorlich · · Score: 1

    Apologies for the broken link. Attempt 2: http://mclean-campbell.com/postcards/Don'tPanic/dp.htm

    --
    Posts, MyBio or Sig, may contain satire, sarcasm, bolded nouns be sardonic or even witty & be Church of SD
  153. Unless there is more than one time dimension. by Burz · · Score: 1

    I believe the theory has more than 4 dimensions total.

  154. I doubt that by Burz · · Score: 1

    It sounds to me like we would have a motionless (timeless) 4D space.

    1. Re:I doubt that by mhall119 · · Score: 1

      It wouldn't have to be motion-less, in fact I don't see why anything would have to change, you can still measure change in x in reference to a change in t, even when t becomes space-like.

      --
      http://www.mhall119.com
  155. I hope it's not on Dec 12, 2012... by Anonymous Coward · · Score: 0

    ... otherwise, it would be God's way of making us live forever in heaven or hell; by eliminating time, completely!

  156. William Sleator rocks! (apparently) by LanMan04 · · Score: 1

    Wow! Those are all written by the same guy?!?

    There are 3 books I read in 6th grade (11/12 year old) that really, really stuck with me: Interstellar Pig, House of Stairs, and The Boy Who Reversed Himself. I had NO IDEA they were all written by the same guy! Amazing! Here it is 15 years later and The House of Stairs still makes me feel weird...man, talk about a trip down memory lane!

    I actually made an Interstellar Pig game based on the one in the book...and actually played it with some of my friends! Good times, good times.

    Of course, shortly after that I got into David Eddings/Robert Jordan/Raymond Feist and read fantasy for 10 years before getting back into sci-fi.

    --
    With the first link, the chain is forged.
  157. Mod Parent Down by Anonymous Coward · · Score: 0

    This is a bunch of bad conjecture. As a physicist, I won't even even begin.

  158. Re:Are there any /. editors with physics degrees? by xPsi · · Score: 1

    Very well stated. Wick rotations are usually just a calculational tool in QFT (or in lattice QCD/QED, you can use it to model temperature dependence); nevertheless, I do think it is interesting to ask what the real physical consequences of a Euclidan space-time might be.

    --
    i\hbar\dot{\psi}=\hat{H}\psi
  159. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  160. That was actually a pretty good episode. by mosel-saar-ruwer · · Score: 1


    Most of the new Doctor Who has been just a steaming pile of effete, metrosexual, politically correct bullsh*t [what else would you expect from the BBC these days?], but I caught that episode the other night, and it was actually pretty darned good.

    Easily the best episode of any that I've seen of this current revival of The Doctor, and proof that good story-telling can overcome a big deficiency in the special-effects budget.

  161. Quack Quack by Anonymous Coward · · Score: 0

    Luis, we're still waiting, or are you just another Internet kook?

  162. SPOILERS REVEALED BELOW by Ristol · · Score: 1

    It's actually part of the second Foundation trilogy by Isaac Asimov. Not to be confused with the Second Foundation trilogy, which would be something entirely different... if it existed.

    --
    What wouldn't Jesus do?!
  163. Re:New Trends in Slashdot hijinks.... by greginnj · · Score: 1

    I can't believe this ... two offtopic mods, one coming 36 hours after it was posted...

    See, guys, it was a joke ... rather than saying "first post" as the first post, or near it, it was a very, very, late "first post" posting, but because all the characters are in the first column, and TFA was about changing the time coordinate to a space coordinate, it was a new way to get a "first post"... sort of a prank-the-meme concept.

    If there's a mod reading this, and you halfway see my point, please mod the parent "funny" just to partially restore my faith in humanity...

    Thanks.

    --
    Read the best of all of Slash: seenonslash.com
  164. theory on the universe by renwickman · · Score: 1

    I understand that recently a scientist predicted the size of the universe. Also that Albert Einstein had a similar theory that he threw out. However I always had this idea that the universe is ever expanding and infinite in a sense. That the farther out you get the greater the chance that light will be blocked by matter. I kind of just think of it as matter comes into the universe from a dimension that can not be seen or recognized by us mortals. It would probably be created in the largest voids between matter and destroyed in black holes. Never really bought he hole dark energy/dark matter theory. Although I suppose that I am just a non college educated dabbler.